CN105665610B - Magnesium alloy auto hub forging method - Google Patents
Magnesium alloy auto hub forging method Download PDFInfo
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- CN105665610B CN105665610B CN201610085921.1A CN201610085921A CN105665610B CN 105665610 B CN105665610 B CN 105665610B CN 201610085921 A CN201610085921 A CN 201610085921A CN 105665610 B CN105665610 B CN 105665610B
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- 238000005242 forging Methods 0.000 title claims abstract description 84
- 229910000861 Mg alloy Inorganic materials 0.000 title claims abstract description 67
- 238000000034 method Methods 0.000 title claims abstract description 35
- 238000010438 heat treatment Methods 0.000 claims abstract description 37
- 230000000903 blocking effect Effects 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 claims description 26
- 238000009413 insulation Methods 0.000 claims description 19
- 230000002706 hydrostatic effect Effects 0.000 claims description 17
- 238000007599 discharging Methods 0.000 claims description 9
- 238000005259 measurement Methods 0.000 claims description 6
- 238000012937 correction Methods 0.000 claims description 3
- 239000002699 waste material Substances 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 239000004615 ingredient Substances 0.000 abstract description 7
- 239000000956 alloy Substances 0.000 description 6
- 230000009286 beneficial effect Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000013461 design Methods 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 238000000465 moulding Methods 0.000 description 3
- 238000007493 shaping process Methods 0.000 description 3
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 229910052749 magnesium Inorganic materials 0.000 description 2
- 239000011777 magnesium Substances 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910001234 light alloy Inorganic materials 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
- B21K1/00—Making machine elements
- B21K1/28—Making machine elements wheels; discs
- B21K1/40—Making machine elements wheels; discs hubs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J13/00—Details of machines for forging, pressing, or hammering
- B21J13/02—Dies or mountings therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J13/00—Details of machines for forging, pressing, or hammering
- B21J13/02—Dies or mountings therefor
- B21J13/03—Die mountings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J13/00—Details of machines for forging, pressing, or hammering
- B21J13/08—Accessories for handling work or tools
- B21J13/10—Manipulators
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J13/00—Details of machines for forging, pressing, or hammering
- B21J13/08—Accessories for handling work or tools
- B21J13/14—Ejecting devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J17/00—Forge furnaces
- B21J17/02—Forge furnaces electrically heated
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
- B21J5/02—Die forging; Trimming by making use of special dies ; Punching during forging
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J9/00—Forging presses
- B21J9/10—Drives for forging presses
- B21J9/20—Control devices specially adapted to forging presses not restricted to one of the preceding subgroups
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
- B21K29/00—Arrangements for heating or cooling during processing
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Forging (AREA)
Abstract
The present invention relates to forging field, it is therefore an objective to provides a kind of magnesium alloy auto hub forging method；A kind of magnesium alloy auto hub forging method, step 1, magnesium alloy bar is heated in heating furnace；Step 2, blocking is carried out to magnesium alloy bar；Step 3, pre-profiling forging is carried out to plate-like blank；Step 4；Step 5；Step 6, finishing type wheel hub are heated by turn device indexing to through position, and heating and temperature control is at 320 DEG C to 450 DEG C；Step 7, wheel rim is carried out to finishing type wheel hub and is extruded to shape.The magnesium alloy auto hub forging method production efficiency is higher, and magnesium alloy auto hub dense structure and uniform ingredients, mechanical strength are higher.
Description
Technical field
The present invention relates to forging field, especially a kind of magnesium alloy auto hub forging method.
Background technology
Magnesium alloy materials have that in light weight, specific strength is high, modulus of elasticity is good, shock-absorbing vibration damping is good, can all recycle
Feature, it is optimal boss material after aluminum alloy materials using magnesium alloy materials manufacture automotive hub, the behaviour that automobile can be improved
Control performance, acceleration and braking ability, and energy fuel-efficient 10% to 14%；The coarse grains and lattice of magnesium alloy materials are in hexagonal
Square arrangement, the degree of crystal grain dislocation movement by slip at normal temperatures are very low, it is difficult to are plastically deformed；In pyroplastic deformability, Wen Bianfan is deformed
Enclose narrower, and control to rate of deformation, deformation velocity requires very sensitive；Magnesium alloy auto is produced with traditional moulding process
Wheel hub, the low pressure casting method of light-alloy research institute of Shanghai Communications University, two step method and for example is forged after the first casting of Northcentral University, although production effect
Rate is higher, but the deficiency that magnesium alloy auto hub tissue is not fine and close enough and composition is not uniform enough, mechanical strength is relatively low be present；Cause
This, designs that a kind of production efficiency is higher, and magnesium alloy auto hub dense structure and the higher magnesium of uniform ingredients, mechanical strength close
Golden automotive hub forging method, turns into urgent problem to be solved.
The content of the invention
The invention aims to overcome to produce magnesium alloy auto hub with traditional moulding process at present, although production
Efficiency is higher, but the deficiency that magnesium alloy auto hub tissue is not fine and close enough and composition is not uniform enough, mechanical strength is relatively low be present,
There is provided that a kind of production efficiency is higher, and magnesium alloy auto hub dense structure and the higher magnesium alloy of uniform ingredients, mechanical strength
Automotive hub forging method.
The present invention concrete technical scheme be：
A kind of magnesium alloy auto hub forging method, step 1, magnesium alloy bar is heated in heating furnace, heating-up temperature
Control is at 320 DEG C to 450 DEG C；Step 2, blocking is carried out to magnesium alloy bar, magnesium alloy bar is taken out from heating furnace and passed through
Turn device indexing starts first hydrostatic forging machine and magnesium alloy bar is swaged into plate-like blank into blocker；Step 3 is right
Plate-like blank carries out pre-profiling forging, plate-like blank is heated into pre-profiling mould by turn device indexing, heating and temperature control
At 320 DEG C to 450 DEG C, start second hydrostatic forging machine and plate-like blank is swaged into pre-profiling wheel hub；Step 4, to pre-profiling wheel
Hub carries out precisive shaped forging, pre-profiling wheel hub is heated into precisive shaped mould by turn device indexing, heating and temperature control is 320
DEG C to 450 DEG C, start the 3rd hydrostatic forging machine and pre-profiling wheel hub is swaged into precisive shaped wheel hub；Step 5, to precisive shaped wheel hub
Finishing swaged forging is carried out, precisive shaped wheel hub is heated into finishing pattern by turn device indexing, heating and temperature control is at 320 DEG C
To 450 DEG C, start the 4th hydrostatic forging machine and precisive shaped wheel hub is swaged into finishing type wheel hub；Step 6, finishing type wheel hub pass through
Turn device indexing is heated to through position, and heating and temperature control is at 320 DEG C to 450 DEG C；Step 7, road wheel is entered to finishing type wheel hub
Rim is extruded to shape, and finishing type wheel hub is extruded by turn device indexing to the enterprising road wheel rim of magnesium alloy auto hub shaped device
The forging of magnesium alloy auto hub is completed in sizing.The structure of magnesium alloy auto hub shaped device can be from China Patent No.
A kind of magnesium alloy auto hub shaped device and moulding process of CN201510125098.8 disclosure of the invention are understood；The magnesium
Alloy automobile wheel hub forging method, in forging process by heating furnace to magnesium alloy bar, pre-profiling mould to plate-like blank, essence
Shaping mould heats to pre-profiling wheel hub, finishing pattern to precisive shaped wheel hub and through position to finishing type wheel hub, and by more
Individual turn device carries out indexing, shortens forging time, production efficiency is higher, and magnesium alloy auto hub dense structure and composition
Uniformly, mechanical strength is higher.
Preferably, pre-profiling forging, including pre-profiling wheel hub vertically hung scroll, installation are carried out to plate-like blank described in step 3
Disk, wheel hub upper surface and pre-profiling wheel rim；Precisive shaped forging, including finish forge wheel are carried out to pre-profiling wheel hub blank described in step 4
Hub vertically hung scroll, mounting disc and hub centre positioning hole, precisive shaped wheel rim；Finishing is carried out to precisive shaped wheel hub blank described in step 5
Swaged forging, include the fine of hub centre positioning hole, the smart Shape correction of wheel hub profile, the hair that excision precisive shaped wheel hub blank is left
Leftover bits and pieces of material.By Step 2: Step 3: step 4 and step 5 small deformation amount multi-step forging, step 7 are entered to finishing type wheel hub
Road wheel rim is extruded to shape, and it is very sensitive to meet control requirement of the magnesium alloy auto hub forging to rate of deformation, deformation velocity
Requirement.
Preferably, described heating furnace is constant temperature and pressure continuous tunnel furnace.Magnesium alloy bar is heated evenly, avoids producing
Burn or cold in heat outside.
Preferably, described precisive shaped mould includes：Dynamic model provided with mo(u)ld top half face, the cover half provided with mo(u)ld bottom half face, two phases
Opposite is respectively equipped with semicircle side type face and the side form being respectively slidably connected by least one guide rail and cover half, two side form oil
Cylinder, constant temperature heating device, Lifting Device and discharging device；The piston rod of two side form oil cylinders and two side forms are corresponded and connected
Connect.The structure of blocker, pre-profiling mould and finishing pattern is identical with precisive shaped mould；Pre-profiling mould passes through constant temperature heating device constant temperature
Heating, pre-profiling wheel hub is set to be forged in design temperature scope precisive shaped, precisive shaped wheel hub dense structure and composition after precisive shaped forging
Uniformly；Side form moves convenient, flexible under the drive of side form oil cylinder.
Preferably, described Lifting Device includes：What the supporting counterbore and upper end that cover half is provided with connected with supporting counterbore
Jogger hole, the push rod in jogger hole, the top being connected in supporting counterbore and with push rod upper end, liftout oil cylinder；Liftout
The piston rod of oil cylinder is connected with push rod lower end.Lifting Device makes the convenient ejection of precisive shaped wheel hub after precisive shaped forging and beneficial to indexing
Equipment, which is grabbed, takes.
Preferably, described discharging device includes：Material returned hole in dynamic model, the material returned bar in material returned hole,
Material returned oil cylinder；The piston rod of material returned oil cylinder is connected with material returned bar upper end.Discharging device makes the precisive shaped wheel hub side after precisive shaped forging
Just eject and grabbed beneficial to indexing apparatus and taken.
Preferably, described constant temperature heating device includes：Electric heater in cover half, it is fixed provided with measurement end insertion
The temperature controller of thermocouple in mould, it is coated on the thermal insulation layer of cover half gusset.Constant temperature heating device is simple and practical, and thermal insulation layer carries
High heat insulation effect and security.
Preferably, described turn device is the robot provided with jaw or the manipulator provided with jaw；The pawl of jaw
Pin is provided with thermal insulation layer.General part, indexing are convenient and practical；Thermal insulation layer improves heat insulation effect and security.
Preferably, described through position includes：Stage body, the electric heater in stage body, provided with measurement end insert stand
The temperature controller of thermocouple in body, it is coated on the thermal insulation layer of stage body gusset.Through position is simple and practical.
Preferably, described hydrostatic forging machine is provided with deformation velocity and rate of deformation control system.Can more preferably it control
Deflection in forging process.The establishing method of deformation velocity and rate of deformation can be from China Patent No. CN201110279996.0
A kind of establishing method of high-temperature alloy forging hydraulic press strain rate of disclosure of the invention understood.
Compared with prior art, the beneficial effects of the invention are as follows：The magnesium alloy auto hub forging method, in forging process
In by heating furnace to magnesium alloy bar, pre-profiling mould to plate-like blank, precisive shaped mould to pre-profiling wheel hub, finishing pattern to essence
Shaping wheel hub and through position heat to finishing type wheel hub, and carry out indexing by multiple turn devices, when shortening forging
Between, production efficiency is higher, and magnesium alloy auto hub dense structure and uniform ingredients, mechanical strength are higher.By Step 2: step
Rapid three, step 4 and step 5 small deformation amount multi-step forging, step 7 carry out wheel rim to finishing type wheel hub and are extruded to shape, meet
Control of the magnesium alloy auto hub forging to rate of deformation, deformation velocity requires very sensitive requirement.Heating furnace is that constant temperature is permanent
Continuous tunnel furnace is pressed, is heated evenly magnesium alloy bar, avoids producing burning or cold in heat outside.Precisive shaped mould passes through constant temperature heating device
Heated at constant temperature, make pre-profiling wheel hub design temperature scope precisive shaped forge, precisive shaped forging after precisive shaped wheel hub dense structure and
Uniform ingredients；Side form moves convenient, flexible under the drive of side form oil cylinder.Lifting Device and discharging device make the essence after precisive shaped forging
Shaping wheel hub, which is conveniently ejected and grabbed beneficial to indexing apparatus, to be taken.Turn device is the robot provided with jaw or the machinery provided with jaw
Hand, the pawl pin of jaw are provided with thermal insulation layer, and general part is indexable convenient and practical；Thermal insulation layer improves heat insulation effect and security.Through position
It is simple and practical.Hydrostatic forging machine is provided with deformation velocity and rate of deformation control system.Can be more preferably during controlled forge process
Deflection.
Brief description of the drawings
Fig. 1 is that plate-like blank, pre-profiling wheel hub, precisive shaped wheel hub, finishing type wheel hub and wheel rim are extruded to shape the magnesium of completion
The substep structural representation of alloy automobile wheel hub；
Fig. 2 is the outline drawing of magnesium alloy auto hub；
Fig. 3 is the structural representation of pre-profiling mould；
Fig. 4 is the structural representation of through position.
In figure：Plate-like blank 1, pre-profiling wheel hub 2, precisive shaped wheel hub 3, finishing type wheel hub 4, magnesium alloy auto hub 5, wheel
Hub vertically hung scroll 6, mounting disc 7, wheel rim 8, hub centre positioning hole 9, mo(u)ld top half face 10, dynamic model 11, mo(u)ld bottom half face 12, cover half 13, semicircle
Side type face 14, guide rail 15, side form 16, side form oil cylinder 17, supporting counterbore 18, jogger hole 19, push rod 20, top 21, liftout oil cylinder
22nd, material returned hole 23, material returned bar 24, material returned oil cylinder 25, electric heater 26, thermocouple 27, temperature controller 28, thermal insulation layer 29, platform
Body 30.
Embodiment
It is shown below in conjunction with the accompanying drawings that the present invention is described further.
As shown in Figure 1：A kind of magnesium alloy auto hub forging method, step 1, by magnesium alloy bar in heating furnace
Heating, heating and temperature control is at 390 DEG C to 420 DEG C；Step 2, blocking is carried out to magnesium alloy bar, by magnesium alloy bar from adding
Taken out in hot stove by turn device indexing into blocker, start first hydrostatic forging machine and magnesium alloy bar is swaged into plate-like
Blank 1；Step 3, to plate-like blank carry out pre-profiling forging, by plate-like blank by turn device indexing into pre-profiling mould plus
Heat, heating and temperature control start second hydrostatic forging machine and plate-like blank are swaged into pre-profiling wheel hub 2 at 390 DEG C to 420 DEG C；
Step 4, precisive shaped forging is carried out to pre-profiling wheel hub, and pre-profiling wheel hub is heated into precisive shaped mould by turn device indexing,
Heating and temperature control starts the 3rd hydrostatic forging machine and pre-profiling wheel hub is swaged into precisive shaped wheel hub 3 at 390 DEG C to 420 DEG C；Step
Rapid five, finishing swaged forging is carried out to precisive shaped wheel hub, precisive shaped wheel hub is heated into finishing pattern by turn device indexing, added
Hot temperature control starts the 4th hydrostatic forging machine and precisive shaped wheel hub is swaged into finishing type wheel hub 4 at 390 DEG C to 420 DEG C；Step
Six, finishing type wheel hub is heated by turn device indexing to through position, and heating and temperature control is at 390 DEG C to 420 DEG C；Step 7,
Wheel rim is carried out to finishing type wheel hub to be extruded to shape, and finishing type wheel hub is molded by turn device indexing to magnesium alloy auto hub
The enterprising road wheel rim of device, which is extruded to shape, completes the forging of magnesium alloy auto hub 5.
Carry out pre-profiling forging to plate-like blank described in step 3, including pre-profiling wheel hub vertically hung scroll 6, mounting disc 7, on wheel hub
End face and pre-profiling wheel rim 8；Described in step 4 to pre-profiling wheel hub blank carry out precisive shaped forging, including finish forge wheel hub vertically hung scroll,
Mounting disc and hub centre positioning hole 9, precisive shaped wheel rim；Finishing swaged forging is carried out to precisive shaped wheel hub blank described in step 5,
Include the fine of hub centre positioning hole, the smart Shape correction of wheel hub profile, the flash that excision precisive shaped wheel hub blank is left gives up
Material.
Described heating furnace is constant temperature and pressure continuous tunnel furnace.
Described precisive shaped mould includes：Dynamic model 11 provided with mo(u)ld top half face 10, the cover half 13 provided with mo(u)ld bottom half face 12, two relative
Face is respectively equipped with semicircle side type face 14 and the side form 16 being respectively slidably connected by two guide rails 15 and cover half, two side form oil cylinders
17, constant temperature heating device, Lifting Device and discharging device；The piston rod of two side form oil cylinders and two side forms are corresponded and connected
Connect.The structure of blocker, pre-profiling mould and finishing pattern is identical with precisive shaped mould.
Described Lifting Device includes：The jogger hole that the supporting counterbore 18 and upper end that cover half is provided with connect with supporting counterbore
19, the push rod 20 in jogger hole, the top 21 being connected in supporting counterbore and with push rod upper end, liftout oil cylinder 22；Top
The piston rod of material oil cylinder is connected with push rod lower end.
Described discharging device includes：Material returned hole 23 in dynamic model, the material returned bar 24 in material returned hole, material returned oil
Cylinder 25；The piston rod of material returned oil cylinder is connected with material returned bar upper end.
Described constant temperature heating device includes：Electric heater 26 in cover half, inserted provided with measurement end in cover half
The temperature controller 28 of thermocouple 27, it is coated on the thermal insulation layer 29 of cover half gusset.
Described turn device is the robot provided with jaw or the manipulator provided with jaw；The pawl pin of jaw is provided with heat-insulated
Layer.
Described through position includes：Stage body 30, the electric heater in stage body, the heat inserted provided with measurement end in stage body
The temperature controller of galvanic couple, it is coated on the thermal insulation layer of stage body gusset.
Described hydrostatic forging machine is provided with deformation velocity and rate of deformation control system.
The beneficial effects of the invention are as follows：The magnesium alloy auto hub forging method, passes through heating furnace pair in forging process
Magnesium alloy bar, pre-profiling mould are to plate-like blank, precisive shaped mould to pre-profiling wheel hub, finishing pattern to precisive shaped wheel hub and switching
Platform heats to finishing type wheel hub, and carries out indexing by multiple turn devices, shortens forging time, production efficiency compared with
Height, and magnesium alloy auto hub dense structure and uniform ingredients, mechanical strength are higher.By Step 2: Step 3: step 4 and
Step 5 small deformation amount multi-step forging, step 7 carry out wheel rim to finishing type wheel hub and are extruded to shape, and meet magnesium alloy auto wheel
Control of the hub forging to rate of deformation, deformation velocity requires very sensitive requirement.Heating furnace is constant temperature and pressure continuous tunnel furnace, makes magnesium
Alloy bar is heated evenly, and avoids producing burning or cold in heat outside.Precisive shaped mould is made just by constant temperature heating device heated at constant temperature
It is molded wheel hub to forge in design temperature scope precisive shaped, precisive shaped wheel hub dense structure and uniform ingredients after precisive shaped forging；Side form
Moved under the drive of side form oil cylinder convenient, flexible.Lifting Device and discharging device make the precisive shaped wheel hub after precisive shaped forging is convenient to push up
Go out and grab beneficial to indexing apparatus to take.Turn device is the robot provided with jaw or the manipulator provided with jaw, the pawl pin of jaw
It is convenient and practical provided with thermal insulation layer, general part, indexing；Thermal insulation layer improves heat insulation effect and security.Through position is simple and practical.
Hydrostatic forging machine is provided with deformation velocity and rate of deformation control system.Deflection that can be more preferably during controlled forge process.
The present invention can change into that various ways are apparent to one skilled in the art, and such change is not considered as
Depart from the scope of the present invention.All such technical staff to the field obviously change, and are included within this right
Within the scope of it is required that.
Claims (9)
1. a kind of magnesium alloy auto hub forging method, it is characterized in that, step 1, magnesium alloy bar is heated in heating furnace,
Heating and temperature control is at 320 DEG C to 450 DEG C；Step 2, blocking is carried out to magnesium alloy bar, by magnesium alloy bar from heating furnace
Take out by turn device indexing into blocker, start first hydrostatic forging machine and magnesium alloy bar is swaged into plate-like blank；
Step 3, pre-profiling forging is carried out to plate-like blank, and plate-like blank is heated into pre-profiling mould by turn device indexing, heated
Temperature control starts second hydrostatic forging machine and plate-like blank is swaged into pre-profiling wheel hub at 320 DEG C to 450 DEG C；Step 4 is right
Pre-profiling wheel hub carries out precisive shaped forging, pre-profiling wheel hub is heated into precisive shaped mould by turn device indexing, heating-up temperature
Control starts the 3rd hydrostatic forging machine and pre-profiling wheel hub is swaged into precisive shaped wheel hub at 320 DEG C to 450 DEG C；Step 5, to essence
It is molded wheel hub and carries out finishing swaged forging, precisive shaped wheel hub is heated into finishing pattern by turn device indexing, heating-up temperature control
System starts the 4th hydrostatic forging machine and precisive shaped wheel hub is swaged into finishing type wheel hub at 320 DEG C to 450 DEG C；Step 6, finishing type
Wheel hub is heated by turn device indexing to through position, and heating and temperature control is at 320 DEG C to 450 DEG C；Step 7, to finishing type wheel
Hub carries out wheel rim and is extruded to shape, by finishing type wheel hub by being carried out in turn device indexing to magnesium alloy auto hub shaped device
Wheel rim, which is extruded to shape, completes the forging of magnesium alloy auto hub：Described hydrostatic forging machine is provided with deformation velocity and rate of deformation control
System processed.
2. magnesium alloy auto hub forging method according to claim 1, it is characterized in that, described in step 3 to plate-like base
Material carries out pre-profiling forging, including pre-profiling wheel hub vertically hung scroll, mounting disc, wheel hub upper surface and pre-profiling wheel rim；Described in step 4
Precisive shaped forging, including finish forge wheel hub vertically hung scroll, mounting disc and hub centre positioning hole, precisive shaped wheel are carried out to pre-profiling wheel hub blank
Rim；Finishing swaged forging is carried out to precisive shaped wheel hub blank described in step 5, includes the fine of hub centre positioning hole, wheel hub profile
Smart Shape correction, the flash waste material left of excision precisive shaped wheel hub blank.
3. magnesium alloy auto hub forging method according to claim 1 or 2, it is characterized in that, described heating furnace is perseverance
Warm constant pressure continuous tunnel furnace.
4. magnesium alloy auto hub forging method according to claim 1 or 2, it is characterized in that, described precisive shaped mould bag
Include：Dynamic model provided with mo(u)ld top half face, the cover half provided with mo(u)ld bottom half face, two opposite faces are respectively equipped with semicircle side type face and respectively by extremely
The side form that a few guide rail is slidably connected with cover half, two side form oil cylinders, constant temperature heating device, Lifting Device and discharging device；
The piston rod of two side form oil cylinders connects one to one with two side forms.
5. magnesium alloy auto hub forging method according to claim 4, it is characterized in that, described Lifting Device includes：
The jogger hole that the supporting counterbore and upper end that cover half is provided with connect with supporting counterbore, the push rod in jogger hole are heavy positioned at supporting
The top being connected in hole and with push rod upper end, liftout oil cylinder；The piston rod of liftout oil cylinder is connected with push rod lower end.
6. magnesium alloy auto hub forging method according to claim 5, it is characterized in that, described discharging device includes：
Material returned hole in dynamic model, the material returned bar in material returned hole, material returned oil cylinder；The piston rod of material returned oil cylinder and material returned bar upper end
Connection.
7. magnesium alloy auto hub forging method according to claim 5, it is characterized in that, described constant temperature heating device bag
Include：Electric heater in cover half, the temperature controller of the thermocouple inserted provided with measurement end in cover half, is coated on cover half side
The thermal insulation layer enclosed.
8. magnesium alloy auto hub forging method according to claim 5, it is characterized in that, described turn device is to set
There are the robot of jaw or the manipulator provided with jaw；The pawl pin of jaw is provided with thermal insulation layer.
9. magnesium alloy auto hub forging method according to claim 1 or 2, it is characterized in that, described through position includes：
Stage body, the electric heater in stage body, the temperature controller of the thermocouple inserted provided with measurement end in stage body, it is coated on stage body
The thermal insulation layer of gusset.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610085921.1A CN105665610B (en) | 2016-02-15 | 2016-02-15 | Magnesium alloy auto hub forging method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610085921.1A CN105665610B (en) | 2016-02-15 | 2016-02-15 | Magnesium alloy auto hub forging method |
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| Publication Number | Publication Date |
|---|---|
| CN105665610A CN105665610A (en) | 2016-06-15 |
| CN105665610B true CN105665610B (en) | 2017-12-08 |
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|---|---|---|---|
| CN201610085921.1A Active CN105665610B (en) | 2016-02-15 | 2016-02-15 | Magnesium alloy auto hub forging method |
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| CN107617715A (en) * | 2016-07-15 | 2018-01-23 | 万向钱潮股份有限公司 | Close forging technology in automotive hub outer ring |
| CN107598066A (en) * | 2017-09-27 | 2018-01-19 | 仝仲盛 | Backward extrusion die forging method for magnesium alloy hub |
| CN107745063A (en) * | 2017-12-06 | 2018-03-02 | 西南铝业（集团）有限责任公司 | A kind of contour forging technique of aircraft wheel hub |
| CN108655315A (en) * | 2018-03-30 | 2018-10-16 | 天津市天锻压力机有限公司 | The production technology of magnesium alloy vehicle wheel automatic production line |
| CN110842128A (en) * | 2019-12-18 | 2020-02-28 | 天津智威泰克成形技术有限公司 | Hub direct forging die and forging process thereof |
| CN113560482B (en) | 2021-06-29 | 2022-04-01 | 中信戴卡股份有限公司 | Manufacturing method of magnesium alloy hub |
| CN113843385A (en) * | 2021-09-03 | 2021-12-28 | 中信戴卡股份有限公司 | Forging process of magnesium alloy hub |
| CN114558973A (en) * | 2022-01-10 | 2022-05-31 | 淄博国创中心先进车用材料技术创新中心 | Differential temperature magnesium alloy wheel hub forming die |
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| NO911551L (en) * | 1991-04-19 | 1992-10-20 | Norsk Hydro As | PROCEDURE FOR MANUFACTURING VEHICLE WHEELS. |
| US7485044B2 (en) * | 2005-02-17 | 2009-02-03 | General Motors Corporation | Shaft assembly and method of manufacture thereof |
| CN202239430U (en) * | 2011-08-13 | 2012-05-30 | 鞍山钢制压力容器有限公司 | Die for forging magnesium alloy automobile hub |
| CN202861315U (en) * | 2012-01-14 | 2013-04-10 | 秦皇岛燕大现代集成制造技术开发有限公司 | Magnesium alloy wheel forging forming die |
| CN202861316U (en) * | 2012-09-27 | 2013-04-10 | 天津市天锻压力机有限公司 | Large aluminum alloy wheel hub isothermal forging production line |
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