CN208564644U - Structure with shaped air film hole - Google Patents
Structure with shaped air film hole Download PDFInfo
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- CN208564644U CN208564644U CN201820554805.4U CN201820554805U CN208564644U CN 208564644 U CN208564644 U CN 208564644U CN 201820554805 U CN201820554805 U CN 201820554805U CN 208564644 U CN208564644 U CN 208564644U
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- air film
- shaped air
- film hole
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Abstract
This application discloses a kind of structures with shaped air film hole.In the structure with shaped air film hole, shaped air film hole depth is more than or equal to 5 millimeters and/or shaped air film hole depth is more than or equal to 10 times of the diameter of at least one position in shaped air film hole.Shaped air film hole includes first passage and second channel；First passage is communicated with second channel, and first passage and second channel collectively form the through-hole in the structure with shaped air film hole.The structure with shaped air film hole efficiently solves the shaped air film hole machined of big-thickness structure and using problem, the surface of the arbitrary shape of the material can easily apply effect of air film, with good aeroperformance, it can achieve good temperature control, drag reduction and weight loss effect, it is had a wide range of applications in engineering structure, can solve a series of engineering contradiction.
Description
Technical field
This application involves a kind of structures with shaped air film hole, belong to air film construction applications.
Background technique
Air film hole is that a kind of hole for favouring body structure surface by gas injection forms the air film of coating workpieces, reaches tune
Save the effect of temperature and resistance.The turbo blade of aero-engine uses various air film holes, has well solved high temperature alloy leaf
The problem of piece active gaseous film control.The incidence end of air film hole is typically designed as minor diameter, and exit end can keep same with incidence end
The diameter (such as simple straight circular hole) of sample, can also use three-dimensional diffusion hole, referred to as profiled holes.The complicated abnormal shape hole of optimization design
Meeting aerodynamics requirement, the air film effect of single hole can be far longer than simple straight circular hole, for example, under same jet amount, list
Hole film-cooled heat can be greater than 20 times of straight circular hole, and the docile and obedient property of air film is also far superior to simple bore, has similar effect in terms of drag reduction
Fruit.It therefore, the use of complicated abnormal shape air film hole is advanced effective cooling technology on engine or turbine blade of gas turbine.
Complicated abnormal shape hole needs to favour surface 15-45 degree, attached preferably to form air film note.In addition, high quality
Complicated abnormal shape hole needs to realize the machining resolution less than 0.1 millimeter, be smoothly transitted needed for aerodynamic properties with meeting.Cause
This, since the machining resolution of high power laser light can easily reach 0.05 millimeter hereinafter, complicated abnormal shape hole generallys use arteries and veins
The distillation formula removal processing of impulse light, i.e. high intensity laser beam focus on workpiece, and workpiece material distillation removes, scanning laser, from level to level
Material is removed, mechanical milling is similar to, it is abnormally-structured to process the 3 D complex to smoothly transit.Laser processing has depth capability limit
System, after thickness is greater than 5 millimeters, processing efficiency is greatly lowered current laser processing technology, is then difficult to realize greater than 10 millimeters.
Inclination angle is bigger, and the attached effect of air film note is better, but tilt after punching can make punching thickness increase, especially high inclination-angle when, such as 30 degree
Inclination angle can make to punch double thickness.Therefore, it is limited to the depth capability of laser, complicated abnormal shape air film hole is generally used for relatively thin knot
On structure, the thickness of structure is generally within 5 millimeters, and the depth of punching is generally at 0-6 millimeters or so.Complicated abnormal shape air film hole is real
Existing brilliant aeroperformance, must just have a machining resolution within 100 microns, and laser processing is prevailing technology, but laser
Process complicated abnormal shape air film hole, directly pass through that big-thickness structure is highly difficult with minor diameter because current laser processing process it is deep
Degree ability is less than 20:1 in 10 millimeters or so or aspect ratio.
If thickness > 5 millimeter could be used that complicated abnormal shape air film hole, the application range of air film hole will be greatly expanded, because
After thickness increase, the bulk strength of component can be increased, be used for large scale structure.But it is thick that current manufacturing process is difficult to realize super large
Spend air film hole machined, especially complicated abnormal shape air film hole machined.The present invention discloses big-thickness structure materials'use shaped air film hole
Method.
Utility model content
According to the one aspect of the application, a kind of structure with shaped air film hole is provided, this has shaped air film hole
Structure efficiently solve the shaped air film hole machined of big-thickness structure and using problem, the surface of the arbitrary shape of the material is all
Apply effect of air film with can be convenient, there is good aeroperformance, can achieve good temperature control, drag reduction and weight loss effect,
It is had a wide range of applications in engineering structure, can solve a series of engineering contradiction.
The structure with shaped air film hole, which is characterized in that in the structure with shaped air film hole, special-shaped gas
Fenestra depth is more than or equal to 5 millimeters and/or shaped air film hole depth is more than or equal at least one position in the shaped air film hole
10 times of diameter.The shaped air film hole includes first passage and second channel；The first passage and the second channel
It communicates, the first passage and the second channel collectively form the through-hole in the structure with shaped air film hole.
Preferably, the shaped air film hole depth be 10 times of diameter of at least one position in the shaped air film hole with
On.The shaped air film hole depth is 10 millimeters to 1000 millimeters；
And/or
The shaped air film hole depth is 10 times to 10000 of the diameter of at least one position in the shaped air film hole
Times.
Preferably, the overall depth of the shaped air film pore structure is 5 millimeters to 10000 millimeters；And/or the abnormal shape
Air film hole depth is 10 times or more of the diameter of at least one position in the shaped air film hole.
Preferably, in the shaped air film hole at least one position diameter be shaped air film hole minimum diameter.
Preferably, the diameter of at least one position of the first passage is less than or equal at least the one of the second channel
The diameter of a position.
Preferably, the diameter of the first passage is less than the diameter of the second channel.
Preferably, the diameter of the first passage is less than the diameter of the second channel.
Preferably, the diameter of the first passage is less than or equal to the diameter of the second channel；
Preferably, the minimum diameter of the first passage is less than or equal to the minimum diameter of the second channel.
Preferably, the diameter of at least one position of the first passage is within the scope of 0.25 millimeter to 0.75 millimeter；
The diameter of the second channel is greater than or equal to 1 millimeter；
On first passage and second channel perforation direction, the structural thickness with shaped air film hole is greater than or waits
In 10 millimeters.
Preferably, the diameter of at least one position of the first passage is in the range of 0.1 millimeter to 0.25 millimeter；
Preferably, the diameter of at least one position of the first passage is in the range of 0.001 millimeter to 0.25 millimeter；
The diameter of the second channel is greater than or equal to 1 millimeter；
On first passage and second channel perforation direction, the structural thickness with shaped air film hole is greater than or waits
In 20 times of the diameter of at least one position of the first passage.
Preferably, the diameter range of the second channel is selected from 2-300 millimeters.
It is further preferred that the diameter of the second channel is within the scope of 1 millimeter to 100 millimeters.
Preferably, described with shaped air film hole on the first passage and second channel perforation direction
Structural thickness is in the range of 10 millimeters to 10m；
Preferably, described with shaped air film hole on the first passage and second channel perforation direction
Structural thickness is 20 times to 10000 times of the diameter of at least one position of the first passage；
Preferably, diameter or equivalent diameter of the first passage on the surface of the structure with shaped air film hole are big
In the first passage the inside configuration with shaped air film hole diameter.
Preferably, on first passage and second channel perforation direction, the structural thickness with shaped air film hole
Value range, 5000 millimeters, 8000 millimeters, in the range of 10 millimeters to 10 meters.It is further preferred that in first passage and
Two channels penetrate through on direction, and the structural thickness with shaped air film hole is at least one position of the first passage
10 times to 10000 times of diameter.
Preferably, described with shaped air film hole on the first passage and second channel perforation direction
Structural thickness is greater than or equal to 20 times of the diameter of at least one position of the first passage；
Preferably, the second channel is that equal aperture or the second channel include at least two kinds of different pore sizes；With/
Or the second channel has gas-supplying structure；
Preferably, the second channel is equal aperture or the second channel is multiple and includes at least two kinds of differences
Aperture；And/or the second channel has gas-supplying structure.
It is further preferred that the gas-supplying structure can be helicitic texture.
Preferably, the extending direction of the first passage favours the surface of the structure with shaped air film hole.
It is further preferred that the clip surface of the extending direction of the first passage and the structure with shaped air film hole
Angle is 10 ° to 60 °.It is further preferred that 13 °, 45 °, 50 °, 55 ° 57 °.It is further preferred that the first passage
Extending direction and the surface angle of the structure with shaped air film hole are 25 ° to 45 °.Preferably, the first passage exists
The diameter or equivalent diameter on the surface of the structure with shaped air film hole, which are greater than the first passage, has abnormal shape described
The diameter of the inside configuration of air film hole.
In the application, the equivalent diameter refers to: if the section in duct or channel is not circle, by the section
For area divided by π, obtained diameter is equivalent diameter.
Preferably, the first passage includes discharge end and receipts in the opening of the body structure surface with shaped air film hole
The width of narrow end, the opening is gradually reduced from the discharge end to narrowed end；
The narrowed end to the direction of the discharge end, with the first passage in the structure with shaped air film hole
Surface to project to the opening direction consistent.
Preferably, the discharge end has extension, and the extending part exists in the discharge end and the first passage
The two sides of the vertical direction of the projection of the body structure surface with shaped air film hole, the extension by the opening direction with
The opposite direction in the narrowed end extends.
Preferably, the first passage leads in the opening of the body structure surface with shaped air film hole along described first
Road is interspersed in the projecting direction of the body structure surface with shaped air film hole.
Preferably, the first passage leads in the opening of the body structure surface with shaped air film hole along described first
Road is distributed in the vertical direction of the projection of the body structure surface with shaped air film hole with a fixed spacing, and the spacing is greater than etc.
In 1~100 times of the opening diameter or equivalent diameter；And/or the spacing range is 0.01mm~100mm.
It is further preferred that opening of the first passage in the body structure surface with shaped air film hole, along described
First passage is distributed in the vertical direction of the projection of the body structure surface with shaped air film hole with a fixed spacing, the spacing
It is 1.5-100 times more than or equal to the multiple range of the opening diameter or equivalent diameter.
It is further preferred that opening of the first passage in the body structure surface with shaped air film hole, along institute
The vertical direction for stating projection of the first passage in the body structure surface with shaped air film hole is distributed with a fixed spacing, between described
Away from 1.5~80 times more than or equal to the opening diameter or equivalent diameter；And/or the spacing range is 0.1mm~100mm.
Preferably, the structure with shaped air film hole includes surface layer and lower layer；
The first passage penetrates through the surface layer；
The second channel penetrates through the lower layer；
The surface layer is connected with the lower layer, and the second channel of the first passage on the surface layer and the lower layer communicates.
Preferably, surface of the second channel perpendicular to the lower layer.
According to one embodiment of the application, the second channel favours the surface of the lower layer.
Preferably, the surface of the structure with shaped air film hole is three-dimension curved surface or plate.
Preferably, the material includes at least one of metal material, nonmetallic materials, composite material.
According to one embodiment of the application, the material of the surface layer and lower layer is identical or different.
Preferably, the metal material is selected from pure metal, alloy, metal material intermetallic compound and special metal material
At least one of.
Preferably, in aluminide, the aluminide of nickel and the aluminide of iron of the metal material intermetallic compound selected from titanium
It is at least one.
Preferably, at least one in structural metallic material and functional metal materials of the special metal material selected from different purposes
Kind.
Preferably, the nonmetallic materials are selected from cement and other gel rubber materials, ceramics, glass, enamel, cast stone, carbon
Material, nonmetallic ore, ferroelectricity and piezoelectric material, bioceramic, inorganic composite materials, semiconductor material, superelevation heat-resisting material,
At least one of luminescent material, refractory material, magnetic material, optical material, superhard material.It is further preferred that described non-
Metal material is selected from portland cement, aluminate cement, ceramics, glass, enamel, cast stone, mica, marble, crystal, Buddha's warrior attendant
At least one in stone, titanium acid titanate series, lead zirconate titanate based material, titanium carbide, diamond and cubic boron nitride, plastics
Kind.
Preferably, the composite material includes basis material and reinforcing material；The basis material be selected from metal and/or
It is at least one of nonmetallic.
It is further preferred that the metallic matrix is selected from least one of aluminium, magnesium, copper, titanium and its alloy；And/or institute
It states nonmetal basal body and is selected from least one of synthetic resin, rubber, ceramics；And/or the reinforcing material is selected from glass fibers
One of dimension, carbon fiber, boron fibre, aramid fiber, silicon carbide fibre, asbestos fibre, whisker, wire and hard particulates.
It is further preferred that the material structure is the composite construction of multiclass material, including surface layer is the gold such as high-strength, corrosion resistant
Belong to, nonmetallic materials.
Preferably, functional structure is added on the material with shaped air film hole, includes screw thread, detect, microfluid adds
At least one of heat functional structure.
On the other hand, this application provides a kind of methods of processed and applied shaped air film hole on big-thickness structure material.
The processing method of the structure with shaped air film hole, which is characterized in that comprising steps of
A) it is punched in the one side of workpiece to be processed, obtains the workpiece with first passage；
B) it is punched in the another side of the obtained workpiece with first passage of step a), obtains second channel, described second
Channel is communicated with the first passage；Or
A1 it) is punched in the one side of workpiece to be processed, obtains the workpiece with second channel；
B1 it) is punched in the another side of the obtained workpiece with second channel of step a1), obtains first passage, described the
Two channels are communicated with the first passage；
Drilling method in the step a) and step b1) is that laser boring or electric machining are punched.
Preferably, step b) and step a1) described in second channel drilling method include laser, it is machinery, super acoustic or electrical
Spark.
Preferably, the processing method of the structure with shaped air film hole, which is characterized in that comprising steps of
A2 through-hole) is laser machined on workpiece I to be processed, obtains the workpiece I with first passage；
B2 through-hole) is processed on workpiece II to be processed, obtains that there is on the workpiece II, the workpiece II of second channel
The position in two channels and the position of the first passage on the workpiece I correspond；
C) the workpiece I is connect with the workpiece II, obtains workpiece III, the first passage and the second channel
The through-hole of the workpiece III is constituted after connection.
Preferably, the processing method of the structure with shaped air film hole, which is characterized in that comprising steps of
A3 it) is punched in the another side of the second channel of the workpiece to be processed with second channel, obtains first passage, it is described
Second channel is communicated with the first passage；
The step a3) in drilling method be that laser boring or electric machining are punched.
Preferably, the workpiece to be processed with second channel be with casting or 3D increasing material manufacturing have second channel
Workpiece to be processed.
Preferably, diffusion structure is processed at the surface opening of the first passage.
According to the another aspect of the application, provide in any structure with shaped air film hole of one kind extremely
Few a kind of at least one of or structure with shaped air film hole for being processed according to any method in temperature control, subtract
Application in terms of resistance, loss of weight.
The beneficial effect that the application can generate includes:
1) structure with shaped air film hole provided herein efficiently solves the shaped air film hole of big-thickness structure
Process and apply problem.
2) surface of the arbitrary shape of the structure with shaped air film hole provided herein can easily apply
Effect of air film has good aeroperformance, can achieve good temperature control, drag reduction and weight loss effect.
3) structure with shaped air film hole provided herein has a wide range of applications in engineering structure, can solve
Certainly a series of engineering contradiction such as can work in hot environment with cryogenic material；It can guarantee that structural strength protects surface again
Controllable state is held, not by external environmental interference etc..
4) solve can not on big-thickness structure for the processing method of the structure with shaped air film hole provided herein
The problem of working special-shaped air film, this method economically feasible.
Detailed description of the invention
Fig. 1 is that the application is a kind of structure with shaped air film hole and its shaped air film hole having；Scheming (a) is tool
There is the structure of shaped air film hole along the view of the extending direction of shaped air film hole；Figure (b) is to scheme have shaped air film in (a)
The sectional view of the line A-A on the edge of the structure in hole.
Fig. 2 is that a kind of surface of structure with shaped air film hole of the application is the Applied D emonstration figure of three-dimension curved surface.
Fig. 3 is the shaped air film hole single hole aerodynamics simu1ation analysis model schematic diagram of the application.
Fig. 4 is the shaped air film hole aerodynamics simu1ation schematic diagram of the application.
In figure, 1 is the structure with shaped air film hole, and 2 be the surface of the structure with shaped air film hole, and 3 is logical for first
Road, 4 be the surface layer of the structure with shaped air film hole, and 5 be second channel, and 6 be shaped air film hole, and 7 is with shaped air film holes
Structure lower layer；H1 is the thickness of the structure with shaped air film hole；H2 is the surface layer of the structure with shaped air film hole
Thickness；H1-H2 is the thickness of the lower layer of the structure with shaped air film hole.
Specific embodiment
In order to keep the technical solution of the application clearer, below in conjunction with attached drawing, there is anisotropic air film hole to the application
The material of structure is described in further detail.It should be appreciated that specific embodiment described herein is only to explain the application not
With restriction the application.
Embodiment 1
Fig. 1 is a kind of material with shaped air film hole of the application and its shaped air film hole that has；Scheme (a) be with
The view of the extending direction along shaped air film hole of the structure of shaped air film hole；Figure (b) is to scheme have shaped air film in (a)
The sectional view along line A-A of the structure in hole.
As shown in Figure 1, the shaped air film hole for present embodiments providing a kind of structure 1 with shaped air film hole and its having
6, the shaped air film hole 6 includes first passage 3 and second channel 5, the first passage 3 and the common structure of the second channel 5
At the through-hole in the structure 1 with shaped air film hole, the raw material of the structure 1 with shaped air film hole are steel
Iron.
Embodiment 2
Difference from Example 1 is, shown in figure (b) as shown in figure 1, the minimum diameter of first passage 3 is less than described
The diameter of second channel 5, second channel are equal diameter channel, and there is the structure 1 of shaped air film hole to be denoted as material 2-1 for this#.With material
Expect 2-2#, material 2-3#, material 2-4#With the structure 2-1 with shaped air film hole of preparation#The difference is that table 1.
Table 1
Embodiment 3
Difference from Example 1 is that shown in figure (b) as shown in figure 1, the minimum diameter of the first passage 3 is
0.5 millimeter；The diameter of the second channel 5 is 6 millimeters, and second channel 5 is equal aperture channel；It is logical in first passage 3 and second
Road 5 penetrates through on direction, and the thickness H1 of the structure 1 with shaped air film hole is 15 millimeters, this has shaped air film hole
Structure 1 is denoted as material 3-1#.Material 3-2#, material 3-3#, material 3-4#With the structure 3-1 with shaped air film hole#Difference
It is table 2.
Table 2
Embodiment 4
Difference from Example 1 is that shown in figure (b) as shown in figure 1, the minimum diameter of the first passage 3 is
0.09 millimeter；2 millimeters of the diameter of the second channel 5, second channel 5 are equal aperture channel；In first passage 3 and second channel
On 5 perforation directions, the structural thickness H1 with shaped air film hole is equal to the 200 of the minimum diameter of the first passage 3
Times, there is the structure 1 of shaped air film hole to be denoted as material 4-1 for this#.Material 4-2#, material 4-3#, material 4-4#With there is special-shaped gas
The structure 4-1 of fenestra#The difference is that table 3.
Table 3
Embodiment 5
Difference from Example 1 is, shown in figure (b) as shown in figure 1, in the structure 1 with shaped air film hole
Second channel 5 structure include equal aperture, two kinds of different pore sizes and screw thread three types channel.
Embodiment 6
Difference from Example 1 is, shown in figure (b) as shown in figure 1, the extending direction inclination of the first passage 3
In the surface 2 of the structure with shaped air film hole.
Embodiment 7
Difference from Example 6 is, shown in figure (b) as shown in figure 1, the extending direction of the first passage 3 and institute
2 angle of surface for stating the structure with shaped air film hole is 15 °, and there is the structure 1 of shaped air film hole to be denoted as material 7-1 for this#.Material
Expect 7-2#, material 7-3#, material 7-4#With the structure 7-1 with shaped air film hole#The difference is that table 4.
Table 4
Embodiment 8
Difference from Example 7 is, shown in figure (b) as shown in figure 1, the first passage 3 has abnormal shape described
The diameter or equivalent diameter on the surface 2 of the structure of air film hole are greater than the first passage 3 in the knot with shaped air film hole
Diameter inside structure 1.
Embodiment 9
Difference from Example 8 is that shown in figure (a) as shown in figure 1, the first passage 3 of the shaped air film hole 6 exists
The opening of the body structure surface 2 with shaped air film hole includes discharge end and narrows end, and the width of the opening is from the expansion
It dissipates end and is gradually reduced to end is narrowed；The narrowed end to the direction of the discharge end, with the first passage 3 described with different
The body structure surface 2 of type air film hole to project to the opening direction consistent.
Embodiment 10
Difference from Example 9 is, shown in figure (a) as shown in figure 1, the discharge end has extension, described to prolong
Extending portion is located at the vertical of the projection of the discharge end and the first passage 3 in the body structure surface 2 with shaped air film hole
The two sides in direction, the extension extend the opening direction direction opposite with the narrowed end.
Embodiment 11
Difference from Example 10 is, shown in figure (a) as shown in figure 1, the first passage 3 is described with different
The opening of the body structure surface 2 of type air film hole, along the first passage 3 the body structure surface 2 with shaped air film hole throwing
Shadow direction is interspersed.
Embodiment 12
The difference is that, the first passage 3 is in the body structure surface 2 with shaped air film hole with embodiment 11
Opening, the vertical direction along the first passage 3 in the projection of the body structure surface 2 with shaped air film hole are equidistantly divided
Cloth, the spacing are equal to 2 times of the opening diameter or equivalent diameter.
Embodiment 13
Difference from Example 1 is, shown in figure (b) as shown in figure 1, the structure 1 with shaped air film hole is wrapped
Include surface layer 4 and lower layer 7；The first passage 3 penetrates through the surface layer 4；The second channel 5 penetrates through the lower layer 7；The surface layer
4 are connected with the lower layer 7, and the first passage 3 on the surface layer 4 and the second channel 5 of the lower layer 7 communicate.H2 is with abnormal shape
The thickness on the surface layer of the structure of air film hole；H1-H2 is the thickness of the lower layer of the structure with shaped air film hole.
Embodiment 14
The difference is that, shown in figure (b) as shown in figure 1, the second channel 5 is perpendicular under described with embodiment 13
The surface of layer 7.
Embodiment 15
Difference from Example 1 is that the surface 2 of the structure 1 with shaped air film hole is three-dimension curved surface.
Embodiment 16
Difference from Example 1 is that the material 1 with shaped air film hole has detecting structure.
Embodiment 17
The processing method of the structure 1 with shaped air film hole as described in Fig. 1 or 2, comprising steps of
A) it is punched in the one side of workpiece to be processed, obtains the workpiece with first passage 3；
B) it is punched in the another side of the obtained workpiece with first passage 3 of step a), obtains second channel 5, described the
Two channels 5 are communicated with the first passage 1；
Drilling method in the step a) is laser boring.
The drilling method of second channel 5 described in the step b) is laser.
Embodiment 18
The difference is that, the preparation has in the step b) of structure 1 of shaped air film hole with embodiment 17
The drilling method mode of the second channel 5 is different, and as shown in table 5, the material of processing is denoted as material 18-1 respectively#、18-2#、
18-3#。
Table 5
| Structure 1 with shaped air film hole | The drilling method of second channel 5 |
| Embodiment 17 | Laser |
| Material 18-1# | It is mechanical |
| Material 18-2# | Ultrasound |
| Material 18-3# | Electric spark |
Since the mode of the punching of the second channel of the application is not only restricted to laser mode, so punching depth not stimulated light
The limitation of working depth ability, it is possible to realize the hole depth range of the second channel of the application, and can realize the application's
The depth bounds of the profiled holes of structure with shaped air film hole.
Embodiment 19
The difference is that, diffusion structure is processed at the surface opening of the first passage 3 with embodiment 17.
Embodiment 20
The processing method of the structure 1 with shaped air film hole as described in Fig. 1 or 2, comprising steps of
A1 it) is punched in the one side of workpiece to be processed, obtains the workpiece with second channel 5；
B1 it) is punched in the another side of the obtained workpiece with second channel 5 of step a1), obtains first passage 3, it is described
Second channel 5 is communicated with the first passage 3；
The step b1) in drilling method be laser boring, the step a1) described in second channel 5 punching side
Method is machinery.
Embodiment 21
The difference is that, diffusion structure is processed at the surface opening of the first passage 3 with embodiment 20.
Embodiment 22
The processing method of the structure 1 with shaped air film hole as described in Fig. 1 or 2, comprising steps of
A2 through-hole) is laser machined on workpiece I to be processed, obtains the workpiece I with first passage 3；
B2 through-hole) is processed on workpiece II to be processed, obtains having on the workpiece II, the workpiece II of second channel 5
The position of second channel 5 and the position of the first passage 3 on the workpiece I correspond；
C) the workpiece I is connect with the workpiece II, obtains workpiece III, the first passage 3 and described second are led to
The through-hole of the workpiece III is constituted after 5 connection of road.
The step b1) described in second channel 5 drilling method be ultrasound.
Embodiment 23
The difference is that, diffusion structure is processed at the surface opening of the first passage 3 with embodiment 22.
Embodiment 24
The processing method of the structure 1 with shaped air film hole as described in Fig. 1 or 2, comprising steps of
A3 it) is punched in the another side of the workpiece to be processed with second channel 5, obtains first passage 3, the second channel
5 communicate with the first passage 3；
The step a3) in drilling method be laser boring.
The workpiece to be processed with second channel 5 be with casting or 3D increasing material manufacturing with second channel 5 to
Handle workpiece.According to CAD (Computer Aided Design abbreviation CAD) model determine first passage 3 with
The relative position of big second channel 5.
Embodiment 25
The difference is that, diffusion structure is processed at the surface opening of the first passage 3 with embodiment 22.
Embodiment 26
As shown in the figures 1 and 2, there is the structure 1 of shaped air film hole or according to embodiment 17 to 25 described in embodiment 1 to 16
The structure for the structure 1 with shaped air film hole that the method is processed can loss of weight.
Structure 1 described in embodiment 1 to 16 with shaped air film hole or the method according to embodiment 17 to 25 add
Shaped air film hole 6 in the structure for the structure 1 with shaped air film hole that work obtains can be convenient to shaped air film hole
Structure 1 apply effect of air film, which is widely used in terms of temperature control (as cooling), drag reduction.Due to the abnormal shape
The structure of air film hole 6, so the structure 1 with shaped air film hole is in terms of temperature control (as cooling), drag reduction in application, the gas formed
Film all forms the area for being far longer than shaped air film hole 6 at the maximum open on the surface of the material with shaped air film hole 2, institute
Can have the effect of good cooling, drag reduction with the material of sparsely spaced shaped air film hole.
Application in terms of the temperature control of structure 1 with shaped air film hole such as works in hot environment, such as aluminium with cryogenic material
Alloy bears the temperature and reliably working far beyond itself fusing point.
Application in terms of the drag reduction of structure 1 with shaped air film hole, which can guarantee structural strength again, makes surface keep controllable
State, not by external environmental interference.
Embodiment 27
Any described structure 1 with shaped air film hole or according to embodiment 17 or 25 in embodiment 1 to 16
It is applied in the vehicles that the structure 1 with shaped air film hole that method is processed uses in an atmosphere, the traffic work
Tool can be automobile, train, steamer etc..
Explanation has special-shaped gas for the shaped air film hole 6 of material 1 with special-shaped pore structure described in the embodiment 10
Drag reduction process of the structure 1 of fenestra at the front of the direction of motion of the vehicles.The shaped air film hole single hole aerodynamics simu1ation
Analysis model schematic diagram is as shown in figure 3, explain there is shaped air film hole structural material with single shaped air film hole aerodynamics simu1ation
Drag principle.Shaped air film hole aerodynamics simu1ation model and result (as shown in Figure 3): gas is sprayed from aperture, y < 0mm region equivalent
In the smooth no air film state of the surface of solids, y > 5mm is the downstream area of complicated abnormal shape air film hole, and rectangular region is emulation air-flow
Area, wherein a is air film hole proparea, and b is that area is closed in air film hole downstream, and c is air film hole downstream far field.
Shaped air film hole aerodynamics simu1ation schematic diagram is not as shown in figure 4, gas generates film region from the ejection of air film hole 210
Refer to not formed air film herein for " the conventional big velocity gradient of smooth surface ", the velocity gradient in this region has formed air film surface
It is big.After " air film goes the small velocity gradient in surface " refers to that air film hole 210 is blown to car body surface, air film is formed, car body is reduced
The velocity gradient on surface, velocity gradient are less than not formed air film area.By Z axis coordinate as it can be seen that " the conventional big speed ladder of smooth surface
The velocity gradient of degree " is about 90.9.Velocity gradient at " air film goes the small velocity gradient in surface " is about 75.8.Far field refers to vehicle
Body surface region is at a distance from air film hole 210.As long as the pressure of shaped air film hole is slightly raised above far field stagnation pressure (flow field speed
Equivalent pressure when degree is zero), so that it may the air film layer for attaching surface of smooth solid is formed, the knot with shaped air film hole is reduced
The resistance on the surface of structure.
The above is only several embodiments of the application, not does any type of limitation to the application, although this Shen
Please disclosed as above with preferred embodiment, however not to limit the application, any person skilled in the art is not taking off
In the range of technical scheme, a little variation or modification are made using the technology contents of the disclosure above and is equal to
Case study on implementation is imitated, is belonged in technical proposal scope.
Claims (10)
1. a kind of structure with shaped air film hole, which is characterized in that in the structure with shaped air film hole, shaped air film
Hole depth is more than or equal to 5 millimeters and/or shaped air film hole depth is more than or equal at least one position in the shaped air film hole
10 times of diameter.
2. the structure according to claim 1 with shaped air film hole, which is characterized in that the shaped air film hole depth
It is 10 millimeters to 1000 millimeters；And/or
The shaped air film hole depth is 10 times to 10000 times of the diameter of at least one position in the shaped air film hole；
The shaped air film hole includes first passage and second channel；
The first passage is communicated with the second channel, and the first passage and the second channel, which collectively form, described to be had
Through-hole in the structure of shaped air film hole；
The surface of the structure with shaped air film hole is three-dimension curved surface or plate；
The material includes at least one of metal material, nonmetallic materials, composite material.
3. the structure according to claim 2 with shaped air film hole, which is characterized in that at least the one of the first passage
The diameter of a position is less than or equal to the diameter of at least one position of the second channel；
The diameter of the second channel is greater than or equal to 1 millimeter；
On the first passage and second channel perforation direction, the structural thickness with shaped air film hole is greater than
Or it is equal to 10 millimeters；
On the first passage and second channel perforation direction, the structural thickness with shaped air film hole is greater than
Or 20 times of diameter of at least one position equal to the first passage；
The second channel is that equal aperture or the second channel include at least two kinds of different pore sizes；And/or described second is logical
Stage property is for gas-supplying structure；
The extending direction of the first passage favours the surface of the structure with shaped air film hole.
4. the structure according to claim 3 with shaped air film hole, which is characterized in that the diameter of the second channel exists
Within the scope of 1 millimeter to 100 millimeters；
On the first passage and second channel perforation direction, the structural thickness with shaped air film hole is 10
In the range of millimeter to 10m；
On the first passage and second channel perforation direction, the structural thickness with shaped air film hole is institute
20 times to 10000 times for stating the diameter of at least one position of first passage；
Diameter or equivalent diameter of the first passage on the surface of the structure with shaped air film hole are greater than described first
Diameter of the channel in the inside configuration with shaped air film hole.
5. the structure according to claim 4 with shaped air film hole, which is characterized in that the first passage is in the tool
The opening for having the body structure surface of shaped air film hole includes discharge end and narrows end, and the width of the opening is from the discharge end to receipts
Narrow end is gradually reduced；
The narrowed end to the direction of the discharge end, with the first passage in the body structure surface with shaped air film hole
To project to the opening direction consistent.
6. the structure according to claim 4 with shaped air film hole, which is characterized in that the discharge end, which has, to be extended
Portion, the extending part in the discharge end and the first passage the body structure surface with shaped air film hole projection
Vertical direction two sides, the extension extends the opening direction direction opposite with the narrowed end.
7. the structure according to claim 4 with shaped air film hole, which is characterized in that the first passage is in the tool
Have the opening of the body structure surface of shaped air film hole, along the first passage the body structure surface with shaped air film hole throwing
Shadow direction is interspersed.
8. the structure according to claim 4 with shaped air film hole, which is characterized in that the first passage is in the tool
Have the opening of the body structure surface of shaped air film hole, along the first passage the body structure surface with shaped air film hole throwing
The vertical direction of shadow is distributed with a fixed spacing, and the spacing is more than or equal to 1~100 times of the opening diameter or equivalent diameter；
And/or
The spacing range is 0.01mm~100mm.
9. the structure according to claim 2 with shaped air film hole, which is characterized in that described with shaped air film hole
Structure includes surface layer and lower layer；
The first passage penetrates through the surface layer；
The second channel penetrates through the lower layer；
The surface layer is connected with the lower layer, the first passage on the surface layer and the second channel phase of the lower layer
It is logical.
10. the structure according to claim 9 with shaped air film hole, which is characterized in that the second channel perpendicular to
The surface of the lower layer；
The material of the surface layer and lower layer is identical or different.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820554805.4U CN208564644U (en) | 2018-04-18 | 2018-04-18 | Structure with shaped air film hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820554805.4U CN208564644U (en) | 2018-04-18 | 2018-04-18 | Structure with shaped air film hole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208564644U true CN208564644U (en) | 2019-03-01 |
Family
ID=65480012
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820554805.4U Active CN208564644U (en) | 2018-04-18 | 2018-04-18 | Structure with shaped air film hole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208564644U (en) |
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2018
- 2018-04-18 CN CN201820554805.4U patent/CN208564644U/en active Active
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