CN104959786A - Thin-walled part machining method - Google Patents
Thin-walled part machining method Download PDFInfo
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- CN104959786A CN104959786A CN201510335657.8A CN201510335657A CN104959786A CN 104959786 A CN104959786 A CN 104959786A CN 201510335657 A CN201510335657 A CN 201510335657A CN 104959786 A CN104959786 A CN 104959786A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
Abstract
The invention provides a thin-walled part machining method. A thin-walled part is an aluminum alloy thin-walled cavity part. The machining method comprises the first step of rough part machining, the second step of thermal processing of the part and the third step of fine part machining. According to the thin-walled part machining method, the machining method is reasonable in procedure arrangement and high in working efficiency; the problem of machining deformation of the part is effectively solved, and the machining precision and the surface quality of the part are greatly improved.
Description
Technical field
The present invention relates to a kind of method of processing parts, be specifically related to a kind of processing method of thin-walled parts, belong to Machining Technology field.
Background technology
In machining, thin-walled parts is the part that in actual production, Application comparison is many, and especially aluminium alloy thin-walled cavity part is applied increasingly extensive in electron trade.Such part is generally formed by aluminium alloy plate overall processing, there is the advantages such as lightweight, compact conformation, but such part exists, and the process-cycle is long, processing cost is high, machining accuracy is difficult to the difficult points such as control always, reason is that in such part process, metal removal rate is large, rigidity is low, intensity is weak, easy generation moderate finite deformation, is difficult to the machining accuracy and the surface quality that ensure part after processing.
At present, in the processing of aluminium alloy thin-walled cavity part, the processing method of application exists a lot of not enough, as: the part residual stress of generation mode that is larger, clamping parts is unreasonable, cutting surface easily produces plastic deformation etc., these deficiencies cause easily producing distortion in part process, thus affect machining accuracy and the surface quality of aluminium alloy thin-walled cavity part.Therefore, solve the problem on deformation of aluminium alloy thin-walled cavity part in process, just can improve the operating efficiency of such part Milling Process, improve precision and the quality of part, realize product and produce fast.
Summary of the invention
For the demand, the invention provides a kind of processing method of thin-walled parts, this processing method procedure arrangement is reasonable, operating efficiency is high, not only efficiently solves the machining deformation problem of part, and substantially increases machining accuracy and the surface quality of part.
The present invention is a kind of processing method of thin-walled parts, and described thin-walled parts is aluminium alloy thin-walled cavity part, and described processing method comprises the steps: a) roughing part, b) heat-treatment part, c) precision-machined parts.
In a preferred embodiment of the present invention, in described step a), the parts fixation mode that roughing part adopts is traditional bench vice clamping, and its processing mode is high-speed cutting processing, its processing tasks removes the unnecessary material of part, for enough surpluses are stopped in fine finishining.
In a preferred embodiment of the present invention, in described step b), heat-treatment part adopts stress relief annealed heat treatment mode, comprises the steps: 1) part at 170 DEG C ~ 190 DEG C temperature after process annealing heat treatment roughing; 2) at 85 DEG C ~ 90 DEG C temperature, 3 ~ 4h is incubated.
In a preferred embodiment of the present invention, in described step c), the parts fixation mode that precision-machined parts adopts is novel evacuated suction jig clamping, and its processing mode is high-speed cutting processing.
In a preferred embodiment of the present invention, described novel evacuated suction jig is made up of vacuum cup, alignment pin and extraordinary sealing strip, and it is by alignment pin locating element, by vacuum pressure Clamp blocks.
Present invention is disclosed a kind of processing method of thin-walled parts, this processing method procedure arrangement is reasonable, operating efficiency is high, not only efficiently solves the machining deformation problem of part, and substantially increases machining accuracy and the surface quality of part.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation:
Fig. 1 is the process figure of embodiment of the present invention thin-walled parts processing method;
Fig. 2 is the structural representation of the novel evacuated suction jig of the embodiment of the present invention;
In accompanying drawing, the mark of each parts is as follows: 1, vacuum cup, and 2, alignment pin, 3, extraordinary sealing strip, 4, part.
Detailed description of the invention
Below in conjunction with accompanying drawing, preferred embodiment of the present invention is described in detail, can be easier to make advantages and features of the invention be readily appreciated by one skilled in the art, thus more explicit defining is made to protection scope of the present invention.
Fig. 1 is the process figure of embodiment of the present invention thin-walled parts processing method; The processing method of this thin-walled parts comprises the steps: a) roughing part, b) heat-treatment part, c) precision-machined parts.
The thin-walled parts that the present invention mentions is aluminium alloy thin-walled cavity part, such part metal removal rate is large, rigidity is low, distortion can be caused because of residual stress, clamping power, cutting movement three aspect factor in process, thus affect machining accuracy and the surface quality of part.The thin-walled parts processing method that the present invention proposes, pass through optimization technological process, Roughing and fine machining is separated, adopt high-speed cutting mode to process, adopt rational installation way clamping parts, after roughing completes, part is heat-treated, the cutting stress of part and residual stress are fully discharged, then carries out fine finishining, and then ensure that machining accuracy and the surface quality of part.As shown in Figure 2, the finishing passes in this thin-walled parts processing method have employed novel evacuated suction jig,
This novel evacuated suction jig is made up of vacuum cup 1, alignment pin 2 and extraordinary sealing strip 3, and it is by alignment pin 2 locating element 4, by vacuum pressure Clamp blocks 4.The clamping stress that this novel evacuated suction jig produces is very little, makes part produce distortion hardly, thus ensure that the crudy of part.
Embodiment 1
Concrete processing method is as follows:
A) roughing part, first adopts traditional bench vice clamping device by the clamping of part location, then adopts high-speed cutting processing technology to carry out roughing, to remove the unnecessary material of part, for enough surpluses are stopped in fine finishining.Wherein, high-speed cutting processing is compared with conventional machining processes, and cutting speed is fast, material deformation speed is fast, strain rate is large, not easily produces built-up edge, phosphorus thorn, thus ensure that the surface quality of part; Meanwhile, because cutting speed is very fast, heat in metal cutting major part is taken away by chip, cutting surface has little time to produce plastic deformation, Milling Process completes, thus by the Stress Control that produces in process in very little scope, ensure that the dimensional accuracy that part is processed preferably.
B) heat-treatment part, concrete processing procedure is: the part first at 170 DEG C of temperature after process annealing heat treatment roughing; Then at 85 DEG C of temperature, the part after heat treatment is incubated 4h.Because part has residual stress after roughing, for reducing residual stress to the impact of machining deformation, first by process annealing heat-treatment part, remove most residual stress, then by the isothermal holding of certain hour, the stress of remainder is fully discharged.
C) precision-machined parts, first the part after heat treatment is placed on the vacuum cup of novel evacuated suction jig, by alignment pin locating element, separate bottom it with the external world with supporting extraordinary sealing strip again, then bottom is vacuumized, when Pressure gauge display vacuum reaches indicated value, namely part is clamped by vacuum pressure; Then high-speed cutting processing technology is adopted to carry out fine finishining.Due to the fine finishining surplus that just processing is less, machining stress and the distortion of generation are less, add that high-speed cutting processing has little time to produce plastic deformation, therefore can improve machining accuracy and the surface quality of part largely.
Embodiment 2
Concrete processing method is as follows:
A) roughing part, first adopts traditional bench vice clamping device by the clamping of part location, then adopts high-speed cutting processing technology to carry out roughing, to remove the unnecessary material of part, for enough surpluses are stopped in fine finishining.Wherein, high-speed cutting processing is compared with conventional machining processes, and cutting speed is fast, material deformation speed is fast, strain rate is large, not easily produces built-up edge, phosphorus thorn, thus ensure that the surface quality of part; Meanwhile, because cutting speed is very fast, heat in metal cutting major part is taken away by chip, cutting surface has little time to produce plastic deformation, Milling Process completes, thus by the Stress Control that produces in process in very little scope, ensure that the dimensional accuracy that part is processed preferably.
B) heat-treatment part, concrete processing procedure is: the part first at 190 DEG C of temperature after process annealing heat treatment roughing; Then at 90 DEG C of temperature, the part after heat treatment is incubated 3h.Because part has residual stress after roughing, for reducing residual stress to the impact of machining deformation, first by process annealing heat-treatment part, remove most residual stress, then by the isothermal holding of certain hour, the stress of remainder is fully discharged.
C) precision-machined parts, first the part after heat treatment is placed on the vacuum cup of novel evacuated suction jig, by alignment pin locating element, separate bottom it with the external world with supporting extraordinary sealing strip again, then bottom is vacuumized, when Pressure gauge display vacuum reaches indicated value, namely part is clamped by vacuum pressure; Then high-speed cutting processing technology is adopted to carry out fine finishining.Due to the fine finishining surplus that just processing is less, machining stress and the distortion of generation are less, add that high-speed cutting processing has little time to produce plastic deformation, therefore can improve machining accuracy and the surface quality of part largely.
Present invention is disclosed a kind of processing method of thin-walled parts, this processing method procedure arrangement is reasonable, operating efficiency is high, not only efficiently solves the machining deformation problem of part, and substantially increases machining accuracy and the surface quality of part.
The above; be only the specific embodiment of the present invention; but protection scope of the present invention is not limited thereto; any those of ordinary skill in the art are in the technical scope disclosed by the present invention; the change can expected without creative work or replacement, all should be encompassed within protection scope of the present invention.Therefore, the protection domain that protection scope of the present invention should limit with claims is as the criterion.
Claims (5)
1. a processing method for thin-walled parts, is characterized in that, described thin-walled parts is aluminium alloy thin-walled cavity part, and described processing method comprises the steps: a) roughing part, b) heat-treatment part, c) precision-machined parts.
2. the processing method of thin-walled parts according to claim 1, it is characterized in that, in described step a), the parts fixation mode that roughing part adopts is traditional bench vice clamping, its processing mode is high-speed cutting processing, its processing tasks removes the unnecessary material of part, for enough surpluses are stopped in fine finishining.
3. the processing method of thin-walled parts according to claim 1, it is characterized in that, in described step b), heat-treatment part adopts stress relief annealed heat treatment mode, comprises the steps: 1) part at 170 DEG C ~ 190 DEG C temperature after process annealing heat treatment roughing; 2) at 85 DEG C ~ 90 DEG C temperature, 3 ~ 4h is incubated.
4. the processing method of thin-walled parts according to claim 1, is characterized in that, in described step c), the parts fixation mode that precision-machined parts adopts is novel evacuated suction jig clamping, and its processing mode is high-speed cutting processing.
5. the processing method of thin-walled parts according to claim 4, is characterized in that, described novel evacuated suction jig is made up of vacuum cup, alignment pin and extraordinary sealing strip, and it is by alignment pin locating element, by vacuum pressure Clamp blocks.
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| CN201510335657.8A CN104959786A (en) | 2015-06-17 | 2015-06-17 | Thin-walled part machining method |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105328409A (en) * | 2015-10-28 | 2016-02-17 | 湖北三江航天红阳机电有限公司 | Method for machining thin-wall sleeve type part through wedge type inner supporting mechanism |
| CN106312460A (en) * | 2016-09-27 | 2017-01-11 | 北京航天新风机械设备有限责任公司 | Processing method of carbon fiber magnesium-based composite thin plate with flatness being less than 0.2mm |
| CN106514160A (en) * | 2017-01-04 | 2017-03-22 | 成都四威高科技产业园有限公司 | High-precision microwave assembly bottom face machining process |
| CN107931691A (en) * | 2017-12-05 | 2018-04-20 | 成都市鸿侠科技有限责任公司 | A kind of large-scale arcuate member processing method of aircraft and the T-shaped knife of processing side set |
| CN108161369A (en) * | 2018-02-05 | 2018-06-15 | 西安电子工程研究所 | A kind of method that evil spirit T adjusts diaphragm processing |
| CN109128728A (en) * | 2018-11-17 | 2019-01-04 | 景德镇兴航科技开发有限公司 | A kind of consumption fuel tank thin wall processing technology |
| CN110026740A (en) * | 2019-04-25 | 2019-07-19 | 沈阳透平机械股份有限公司 | A kind of processing method with end cover suitable for centrifugal compressor |
| CN110434551A (en) * | 2018-05-03 | 2019-11-12 | 靖江佳仁半导体科技有限公司 | A kind of processing technology reducing thin-walled parts deflection |
| CN110757097A (en) * | 2019-09-12 | 2020-02-07 | 深圳市东汇精密机电有限公司 | Method for machining thin plate workpiece |
| CN111496485A (en) * | 2020-05-28 | 2020-08-07 | 沈阳富创精密设备有限公司 | Machining deformation control process for 4J32 material thin-wall ring part |
| CN112605443A (en) * | 2020-11-26 | 2021-04-06 | 西安北方光电科技防务有限公司 | Machining method for industrial organic glass material part |
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| CN101642880A (en) * | 2009-08-24 | 2010-02-10 | 哈尔滨工业大学 | Vacuum adsorption clamping device used for clamping thin-walled planar workpiece |
| CN201970115U (en) * | 2010-11-30 | 2011-09-14 | 中国科学院大连化学物理研究所 | Vacuum adsorbing device used for fixing thin-wall planar workpiece |
| CN102886640A (en) * | 2012-09-04 | 2013-01-23 | 昆山市源丰铝业有限公司 | Method for machining thin-wall aluminum alloy part |
| CN103252623A (en) * | 2013-05-14 | 2013-08-21 | 湖南湖大艾盛汽车技术开发有限公司 | Machining method using vacuum sucker to clamp thin-walled piece with variable wall thicknesses |
| CN203863406U (en) * | 2014-04-09 | 2014-10-08 | 珠海丰谷金属制品有限公司 | Vacuum clamp for machining flat ultra-thin wall piece |
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| CN101642880A (en) * | 2009-08-24 | 2010-02-10 | 哈尔滨工业大学 | Vacuum adsorption clamping device used for clamping thin-walled planar workpiece |
| CN201970115U (en) * | 2010-11-30 | 2011-09-14 | 中国科学院大连化学物理研究所 | Vacuum adsorbing device used for fixing thin-wall planar workpiece |
| CN102886640A (en) * | 2012-09-04 | 2013-01-23 | 昆山市源丰铝业有限公司 | Method for machining thin-wall aluminum alloy part |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105328409A (en) * | 2015-10-28 | 2016-02-17 | 湖北三江航天红阳机电有限公司 | Method for machining thin-wall sleeve type part through wedge type inner supporting mechanism |
| CN106312460A (en) * | 2016-09-27 | 2017-01-11 | 北京航天新风机械设备有限责任公司 | Processing method of carbon fiber magnesium-based composite thin plate with flatness being less than 0.2mm |
| CN106312460B (en) * | 2016-09-27 | 2018-05-11 | 北京航天新风机械设备有限责任公司 | Flatness is less than the carbon fiber magnesium-based composite material thin plate processing method of 0.2mm |
| CN106514160A (en) * | 2017-01-04 | 2017-03-22 | 成都四威高科技产业园有限公司 | High-precision microwave assembly bottom face machining process |
| CN107931691A (en) * | 2017-12-05 | 2018-04-20 | 成都市鸿侠科技有限责任公司 | A kind of large-scale arcuate member processing method of aircraft and the T-shaped knife of processing side set |
| CN108161369A (en) * | 2018-02-05 | 2018-06-15 | 西安电子工程研究所 | A kind of method that evil spirit T adjusts diaphragm processing |
| CN110434551A (en) * | 2018-05-03 | 2019-11-12 | 靖江佳仁半导体科技有限公司 | A kind of processing technology reducing thin-walled parts deflection |
| CN109128728A (en) * | 2018-11-17 | 2019-01-04 | 景德镇兴航科技开发有限公司 | A kind of consumption fuel tank thin wall processing technology |
| CN110026740A (en) * | 2019-04-25 | 2019-07-19 | 沈阳透平机械股份有限公司 | A kind of processing method with end cover suitable for centrifugal compressor |
| CN110757097A (en) * | 2019-09-12 | 2020-02-07 | 深圳市东汇精密机电有限公司 | Method for machining thin plate workpiece |
| CN111496485A (en) * | 2020-05-28 | 2020-08-07 | 沈阳富创精密设备有限公司 | Machining deformation control process for 4J32 material thin-wall ring part |
| CN112605443A (en) * | 2020-11-26 | 2021-04-06 | 西安北方光电科技防务有限公司 | Machining method for industrial organic glass material part |
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