CN104439449A - Method for preventing milling processing deformation of aluminum alloy piece - Google Patents
Method for preventing milling processing deformation of aluminum alloy piece Download PDFInfo
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- CN104439449A CN104439449A CN201410730730.7A CN201410730730A CN104439449A CN 104439449 A CN104439449 A CN 104439449A CN 201410730730 A CN201410730730 A CN 201410730730A CN 104439449 A CN104439449 A CN 104439449A
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- milling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C3/00—Milling particular work; Special milling operations; Machines therefor
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Abstract
The invention relates to a method for preventing milling processing deformation of an aluminum alloy piece. The method comprises the following steps: 1) selecting a machine tool; 2) selecting a milling cutter: selecting a high-cobalt and high-speed steel cutter with cobalt content of 8-10%; 3) selecting a processing raw material: selecting an aluminum alloy material with thickness of 25-30mm, wherein the size of the aluminum alloy material is 2-5cm larger than a processed part in the length and width directions; 4) determining milling parameters: firstly milling the surface of the aluminum alloy by 5-10mm at low milling speed of 20-50m/min by adopting an ordinary milling cutter, and then processing the aluminum alloy piece at milling speed of 121.9-243m/min and feeding amount of 0.635-0.813mm/r by adopting the high-cobalt and high-speed steel cutter; and 5) adopting a processing way: adopting a down milling balanced processing method. The method provided by the invention has the advantages of simplicity and convenience in operation, high processing efficiency, good product quality and low processing cost.
Description
Technical field
The present invention relates to a kind of milling method of Al-alloy parts, especially relate to a kind of method preventing Al-alloy parts Milling Machining to be out of shape.
Background technology
CN 102133655 B discloses a kind of processing method of ultra-thin lock washer part, thickness is selected to be the aluminum alloy materials of 25 ~ 30mm, select the milling cutter meeting processing rigid requirements, then, mill out six faces of aluminum alloy part material, adopt the Milling Machining of axis, broadband, length direction more successively, stay 0 ~ 0.05mm surplus, last milling profile.This processing method can not avoid Al-alloy parts to send distortion in process, as overproof in flatness overproof with the depth of parallelism.
Summary of the invention
The technical problem to be solved in the present invention is: overcome technical deficiency, and provide a kind of processing cost low, converted products quality is good, the method that what working (machining) efficiency was high prevent Al-alloy parts Milling Machining to be out of shape.
The technical solution adopted for the present invention to solve the technical problems is: a kind of method preventing Al-alloy parts Milling Machining to be out of shape, comprise the following steps: 1) select lathe: select to meet the lathe completing Milling Process procedure calls in clamped one time, when reducing multiple clamping in process and produce internal stress or clamping, the uneven clamping force produced is to the deformation effect of workpiece; 2) milling cutter is selected: select to contain the high-cobalt high speed steel cutter that cobalt amount is 8 ~ 10%; 3) Choice and process raw material: select thickness to be the aluminum alloy materials of 25 ~ 30mm, reach the basic demand of part rigidity, the size of aluminum alloy materials than the part processed in length and width direction large 2 ~ 5cm; 4) Milling Parameters is determined: first adopt common milling cutter, with 5 ~ 10mm of the low speed Milling Speed milling aluminum alloy surface of 20 ~ 50m/min, then be converted to high-cobalt high speed steel cutter, process Al-alloy parts with the amount of feeding of the Milling Speed of 121.9 ~ 243m/min and 0.635 ~ 0.813mm/r; 5) processing mode: adopt climb cutting balance processing method.
Further, for complex-shaped Al-alloy parts, cause the heat dispersal situations of workpiece each point different because wall unevenness is even, a kind of method preventing Al-alloy parts Milling Machining to be out of shape, also comprises heat treatment: carry out temper or artificial aging process to milling workpiece.
Further, step 2) in, described high-cobalt high speed steel cutter adopts diameter to be greater than 25.4mm, and its medium size hangs the three-flute end mill that angle is 37 °.
Further, described three-flute end mill relief angle is positive 8 °, and front clearance is positive 12 °.
Further, the concrete operations of the balance of climb cutting described in step 5) processing method are: cutter rotates with the direction identical with table feed direction, and forward and backward, upper and lower, left and right all directions when milling respectively from workpiece are processed.
Beneficial effect of the present invention: a kind of method preventing Al-alloy parts Milling Machining to be out of shape, easy and simple to handle, working (machining) efficiency is high, and passing rate of processing is high, and deformation of products is few, and quality is good, and Product processing cost is low.
Detailed description of the invention
Below in conjunction with embodiment, the invention will be further described.
embodiment 1
The method preventing Al-alloy parts Milling Machining to be out of shape, comprises the following steps:
1) select lathe: select to meet the lathe completing Milling Process procedure calls in clamped one time, when reducing multiple clamping in process and produce internal stress or clamping, the uneven clamping force produced is to the deformation effect of workpiece;
2) milling cutter is selected: select to contain the high-cobalt high speed steel cutter that cobalt amount is 8%; Described high-cobalt high speed steel cutter adopts diameter to be greater than 25.4mm, and its medium size hangs the three-flute end mill that angle is 37 °; Described three-flute end mill relief angle is positive 8 °, and front clearance is positive 12 °;
3) Choice and process raw material: select thickness to be the aluminum alloy materials of 25mm, reach the basic demand of part rigidity, the size of aluminum alloy materials than the part processed in length and width direction large 2cm;
4) Milling Parameters is determined: first adopt common milling cutter, with the 8mm of the low speed Milling Speed milling aluminum alloy surface of 20m/min, then be converted to high-cobalt high speed steel cutter, process Al-alloy parts with the amount of feeding of the Milling Speed of 121.9m/min and 0.635mm/r;
5) processing mode: adopt climb cutting balance processing method, namely cutter rotates with the direction identical with table feed direction, and forward and backward, upper and lower, left and right all directions when milling respectively from workpiece are processed.
embodiment 2
The method preventing Al-alloy parts Milling Machining to be out of shape, comprises the following steps:
1) select lathe: select to meet the lathe completing Milling Process procedure calls in clamped one time, when reducing multiple clamping in process and produce internal stress or clamping, the uneven clamping force produced is to the deformation effect of workpiece;
2) milling cutter is selected: select to contain the high-cobalt high speed steel cutter that cobalt amount is 10%; Described high-cobalt high speed steel cutter adopts diameter to be greater than 25.4mm, and its medium size hangs the three-flute end mill that angle is 37 °; Described three-flute end mill relief angle is positive 8 °, and front clearance is positive 12 °;
3) Choice and process raw material: select thickness to be the aluminum alloy materials of 30mm, reach the basic demand of part rigidity, the size of aluminum alloy materials than the part processed in length and width direction large 5cm;
4) Milling Parameters is determined: first adopt common milling cutter, with the 10mm of the low speed Milling Speed milling aluminum alloy surface of 50m/min, then be converted to high-cobalt high speed steel cutter, process Al-alloy parts with the amount of feeding of the Milling Speed of 243m/min and 0.813mm/r;
5) processing mode: adopt climb cutting balance processing method, namely cutter rotates with the direction identical with table feed direction, and forward and backward, upper and lower, left and right all directions when milling respectively from workpiece are processed.
6) heat treatment: temper or artificial aging process are carried out to milling workpiece.
embodiment 3
The method preventing Al-alloy parts Milling Machining to be out of shape, comprises the following steps:
1) select lathe: select to meet the lathe completing Milling Process procedure calls in clamped one time, when reducing multiple clamping in process and produce internal stress or clamping, the uneven clamping force produced is to the deformation effect of workpiece;
2) milling cutter is selected: select to contain the high-cobalt high speed steel cutter that cobalt amount is 9%; Described high-cobalt high speed steel cutter adopts diameter to be greater than 25.4mm, and its medium size hangs the three-flute end mill that angle is 37 °; Described three-flute end mill relief angle is positive 8 °, and front clearance is positive 12 °;
3) Choice and process raw material: select thickness to be the aluminum alloy materials of 28mm, reach the basic demand of part rigidity, the size of aluminum alloy materials than the part processed in length and width direction large 3cm;
4) determine Milling Parameters: first adopt common milling cutter, with the 5mm of the low speed Milling Speed milling aluminum alloy surface of 40m/min, be then converted to high-cobalt high speed steel cutter, process Al-alloy parts with the amount of feeding of the Milling Speed of 200m/min and 0.750mm/r;
5) processing mode: adopt climb cutting balance processing method, namely cutter rotates with the direction identical with table feed direction, and forward and backward, upper and lower, left and right all directions when milling respectively from workpiece are processed.
6) heat treatment: artificial aging process is carried out to milling workpiece.
A kind of method preventing Al-alloy parts Milling Machining to be out of shape, in step 4), described high cobalt high-speed cutter can also adopt the Milling Parameters processing Al-alloy parts such as the amount of feeding of the Milling Speed of 150m/min and the amount of feeding of 0.682mm/r, the Milling Speed of 165m/min and the amount of feeding of 0.714mm/r, the Milling Speed of 180m/min and the amount of feeding of 0.732mm/r or the Milling Speed of 215m/min and 0.775mm/r; The change of above technical characteristic, those skilled in the art is appreciated that by text description and implements, therefore is no longer separately illustrated as accompanying drawing.
Claims (7)
1. the method preventing Al-alloy parts Milling Machining to be out of shape, it is characterized in that, comprise the following steps: 1) select lathe: select to meet the lathe completing Milling Process procedure calls in clamped one time, when reducing multiple clamping in process and produce internal stress or clamping, the uneven clamping force produced is to the deformation effect of workpiece; 2) milling cutter is selected: select to contain the high-cobalt high speed steel cutter that cobalt amount is 8 ~ 10%; 3) Choice and process raw material: select thickness to be the aluminum alloy materials of 25 ~ 30mm, reach the basic demand of part rigidity, the size of aluminum alloy materials than the part processed in length and width direction large 2 ~ 5cm; 4) Milling Parameters is determined: first adopt common milling cutter, with 5 ~ 10mm of the low speed Milling Speed milling aluminum alloy surface of 20 ~ 50m/min, then be converted to high-cobalt high speed steel cutter, process Al-alloy parts with the amount of feeding of the Milling Speed of 121.9 ~ 243m/min and 0.635 ~ 0.813mm/r; 5) processing mode: adopt climb cutting balance processing method.
2. prevent the method that Al-alloy parts Milling Machining is out of shape as claimed in claim 1, it is characterized in that, for complex-shaped Al-alloy parts, described in prevent Al-alloy parts Milling Machining to be out of shape method also comprise heat treatment: temper or artificial aging process are carried out to milling workpiece.
3. the method preventing Al-alloy parts Milling Machining to be out of shape as claimed in claim 1 or 2, is characterized in that, step 2) in, described high-cobalt high speed steel cutter adopts diameter to be greater than 25.4mm, and its medium size hangs the three-flute end mill that angle is 37 °.
4. the method preventing Al-alloy parts Milling Machining to be out of shape as claimed in claim 3, is characterized in that, described three-flute end mill relief angle is positive 8 °, and front clearance is positive 12 °.
5. prevent the method that Al-alloy parts Milling Machining is out of shape as claimed in claim 1 or 2, it is characterized in that, the concrete operations of the balance of climb cutting described in step 5) processing method are: cutter rotates with the direction identical with table feed direction, and forward and backward, upper and lower, left and right all directions when milling respectively from workpiece are processed.
6. prevent the method that Al-alloy parts Milling Machining is out of shape as claimed in claim 3, it is characterized in that, the concrete operations of the balance of climb cutting described in step 5) processing method are: cutter rotates with the direction identical with table feed direction, and forward and backward, upper and lower, left and right all directions when milling respectively from workpiece are processed.
7. prevent the method that Al-alloy parts Milling Machining is out of shape as claimed in claim 4, it is characterized in that, the concrete operations of the balance of climb cutting described in step 5) processing method are: cutter rotates with the direction identical with table feed direction, and forward and backward, upper and lower, left and right all directions when milling respectively from workpiece are processed.
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105290470A (en) * | 2015-11-02 | 2016-02-03 | 成都航天精诚科技有限公司 | Milling method of graphene aluminum-based composite material |
CN105522206A (en) * | 2015-12-29 | 2016-04-27 | 湖南航天环宇通信科技股份有限公司 | Machining method for aluminum alloy thin-walled cavity part |
CN106623990A (en) * | 2017-01-24 | 2017-05-10 | 天津航天长征火箭制造有限公司 | Accurate machining method for large-diameter aluminum alloy non-uniform section frame ring |
-
2014
- 2014-12-05 CN CN201410730730.7A patent/CN104439449A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105290470A (en) * | 2015-11-02 | 2016-02-03 | 成都航天精诚科技有限公司 | Milling method of graphene aluminum-based composite material |
CN105522206A (en) * | 2015-12-29 | 2016-04-27 | 湖南航天环宇通信科技股份有限公司 | Machining method for aluminum alloy thin-walled cavity part |
CN105522206B (en) * | 2015-12-29 | 2018-02-06 | 湖南航天环宇通信科技股份有限公司 | The processing method of aluminium alloy thin-walled cavity parts |
CN106623990A (en) * | 2017-01-24 | 2017-05-10 | 天津航天长征火箭制造有限公司 | Accurate machining method for large-diameter aluminum alloy non-uniform section frame ring |
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Application publication date: 20150325 |