CN108274202A - A kind of processing technology of deep hole thin-wall part - Google Patents

A kind of processing technology of deep hole thin-wall part Download PDF

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Publication number
CN108274202A
CN108274202A CN201810142001.8A CN201810142001A CN108274202A CN 108274202 A CN108274202 A CN 108274202A CN 201810142001 A CN201810142001 A CN 201810142001A CN 108274202 A CN108274202 A CN 108274202A
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CN
China
Prior art keywords
deep hole
shape
workpiece
milling cutter
thin
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201810142001.8A
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Chinese (zh)
Inventor
肜建森
娄晓霆
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SUZHOU YIKE ELECTROMECHANICAL CO Ltd
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SUZHOU YIKE ELECTROMECHANICAL CO Ltd
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Priority to CN201810142001.8A priority Critical patent/CN108274202A/en
Publication of CN108274202A publication Critical patent/CN108274202A/en
Pending legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23PMETAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P15/00Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23PMETAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P2700/00Indexing scheme relating to the articles being treated, e.g. manufactured, repaired, assembled, connected or other operations covered in the subgroups
    • B23P2700/01Aircraft parts

Abstract

The present invention relates to a kind of processing technology of deep hole thin-wall part, processing step is:S1, first time shape are opened slightly, are carried out first time roughing to the shape of raw material using wire rod quality, are removed surfacing, turning defective material shaping workpiece outer shape is removed using milling cutter;S2, molding deep hole, are punched from the both ends of raw material by drill bit;The workpiece obtained in step S2 is put and carries out high-temperature process in an oven by S3, ageing treatment, removes internal stress;S4, second of shape are opened slightly, and second of roughing is carried out to the shape of the workpiece obtained in step S3 using milling cutter;S5, shape finishing, the shape of the workpiece using milling cutter to being obtained in step S4 finish;S6, deep hole processing carry out semifinishing and finishing using boring cutter to deep hole;S7, processing thin-walled.Occur deforming and shaking knife mark when the processing for solving the problems, such as large-scale deep hole thin-wall part, improves processing efficiency and workpiece quality, reduction in the numbers of seconds.

Description

A kind of processing technology of deep hole thin-wall part
Technical field
The present invention relates to the mechanical processings of deep hole part, more particularly, to a kind of processing technology of deep hole thin-wall part.
Background technology
In aviation field, engine is its core component, and aero-engine is a kind of highly complex and accurate heating power Machinery provides power needed for flight for aircraft, and as the heart of aircraft, it directly affects the performance, reliability and economy of aircraft Property, it is the important embodiment of a national science and technology, industry and military capability of the country.The production of engine with manufacture is given birth to concerning to user Life safety, so the making needs of engine reach very high standard, currently, in the composed structure of engine, need to make Large-scale deep hole thin-wall part is used, processing is particularly difficult, it is desirable that it is high, since wall thickness is relatively thin, workpiece in process Inside will appear internal stress and easily deform, so as to cause scrapping for workpiece;And since hole is deeper, work in-process holds Easily there is shake knife mark, the appearance for shaking knife mark makes circumferential size appearance significantly change, and defect rate is also significantly promoted.
Invention content
Technical problem to be solved by the invention is to provide it is a kind of can eliminate internal stress and prevent shake knife mark occur The processing technology of deep hole thin-wall part.
The technical scheme adopted by the invention to solve the technical problem is that:A kind of processing technology of deep hole thin-wall part, it is described Processing step be:
S1, first time shape are opened slightly, are carried out first time roughing to the shape of raw material using wire rod quality, are removed surface material Material removes turning defective material shaping workpiece outer shape using milling cutter;
S2, molding deep hole, are punched from the both ends of raw material by drill bit;
The workpiece obtained in step S2 is put and carries out high-temperature process in an oven by S3, ageing treatment, at 100 DEG C~300 DEG C In the environment of place 6~12 hours, remove internal stress;
S4, second of shape are opened slightly, and second of roughing is carried out to the shape of the workpiece obtained in step S3 using milling cutter;
S5, shape finishing, the shape of the workpiece using milling cutter to being obtained in step S4 finish;
S6, deep hole processing carry out semifinishing to deep hole using boring cutter and there are surplus 0.1mm, pass through boring cutter pair later Deep-hole tight-face blasting is to required size;
S7, processing thin-walled, axis class fixing tool is inserted into deep hole, and ensures the outer of inner walls of deep holes and axis class fixing tool Wall is bonded, and is processed to the side outer wall of workpiece using small-sized milling cutter, is worked into required size.
Further specifically, environment temperature is 200 DEG C in the step S3.
Further specifically, the standing time in the step S3 is 8 hours.
Further specifically, being all made of a concentration of 15%~20% in described step S1, S2, S4, S5, S6 and S7 Cutting fluid.
Further specifically, in the step S1 the rough machined wire rod quality of first time shape a diameter of 80mm, milling cutter A diameter of 20mm.
Further specifically, the milling cutter diameter that uses of second of roughing in the step S4 is 16mm.
Further specifically, finishing the milling cutter diameter used in the step S5 as 12mm.
Further specifically, a diameter of 29mm of the boring cutter used in the step S6.
Further specifically, the small-sized milling cutter diameter in the step S7 is 4mm.
The beneficial effects of the invention are as follows:After using above-mentioned technique, when processing for solving large-scale deep hole thin-wall part, goes out The problem of now deforming and shaking knife mark, can smoothly produce large-scale deep hole thin-wall part, improve processing efficiency and workpiece quality, Defect rate is reduced, production cost is reduced.
Description of the drawings
Fig. 1 is the flow chart of the present invention.
Specific implementation mode
The present invention is explained in detail below in conjunction with the accompanying drawings.
A kind of processing technology of deep hole thin-wall part as shown in Figure 1, deep hole thin-wall part is made using aluminum material, because of institute The field used is aviation field and in engine structure, quality requirement to be high, it is desirable that it does not have internal stress and not It will appear shake knife mark, processed using material removal in processing, i.e., process large-scale deep hole thin-wall part from a monoblock aluminum material, The processing step is:
S1, first time shape are opened slightly, carry out the first time roughing of shape to aluminium block using the wire rod quality of a diameter of 80mm, Later using a diameter of 20mm milling cutter to wire rod quality process less than position continue processing removal corner defective material, be molded work The exterior contour of part, there are surpluses;First time shape opens thick material removal and can reach 60%, and the rotating speed of wire rod quality and milling cutter is set It sets in 10000r/min, the amount of feeding of cutter is 5000mm/min.
S2, molding deep hole, the hole of workpiece is deeper, is to be processed from both sides to centre by the way of, respectively to the two of aluminium block A face drills, and is that processing is prepared in next step by deep hole machining to required size and there are surplus;The effect of drilling is main It is molding deep hole, internal extra material is removed.
Workpiece is placed in oven and carries out high-temperature process by S3, ageing treatment, and its purpose is to eliminate internal stress; It is placed 6~12 hours in the environment of 100 DEG C~300 DEG C, the internal stress of workpiece can be eliminated, by test of many times, and from cost And comprehensive descision is carried out in quality, when workpiece placed in the environment of 200 DEG C 8 it is small when to be optimal, required effect can be reached;
S4, second of shape are opened slightly, and second of roughing is carried out to the shape of workpiece using the milling cutter of a diameter of 16mm, The milling cutter of 16mm is directly removed the shape of workpiece the processing of material, and the main purpose processed at this time is to ensure workpiece configurations The metal of each curved surface flows to uniformity, and for follow-up finishing, there are surpluses;The rotating speed of milling cutter is arranged in 10000r/min, knife The amount of feeding of tool is 5000mm/min.
S5, shape finishing, finish shape using the milling cutter of a diameter of 12mm, are worked into required size;Milling In 10000r/min, the amount of feeding of cutter is 5000mm/min for the rotating speed setting of knife.
S6, deep hole processing are removed material to molding deep hole in step S2 using the boring cutter of a diameter of 29mm and add Work carries out semifinishing for the first time, quickly by deep hole machining to required size and unilateral there are surplus 0.1mm, for the second time into Row finishing, spend longer time finished, by deep hole machining to required size and ensure its tolerance 0.1mm model In enclosing;In 10000r/min, the amount of feeding of cutter is 5000mm/min for the rotating speed setting of milling cutter;In the process for carrying out deep hole machining In, it needs to be controlled its concentricity, passes through the control of the parameters such as rotating speed to cutter length, tool feeding amount and cutter It is subject to the control to concentricity.
S7, processing thin-walled, axis class fixing tool is inserted into deep hole, and ensures the outer of inner walls of deep holes and axis class fixing tool Wall is bonded completely, and the outer wall of axis class fixing tool is made using profiling, can ensure compactness between the two, is completed After clamping, the outer wall of workpiece is processed again using the small-sized milling cutter of 4mm, is worked into specified size;Axis class is solid It is to prop up thin-walled to determine the main effect of tooling, so that it is unlikely to deform in process, while not will produce shake knife mark;Small-sized milling The rotating speed setting of knife is 5000mm/min in the amount of feeding in 10000r/min, cutter.
First time shape opens thick, molding deep hole, second of shape opens thick, shape finishing, deep hole processing and processing During thin-walled, it is all made of a concentration of 15%~20% cutting fluid, this cutting fluid is conducive to chip removal, and can also prevent Knife is only glued, the surface quality of product is further increased.Cutting fluid has good cooling performance, greasy property, rustless property, removes The features such as oily cleaning function, anti-corrosion function, easily dilutable.
In above-mentioned process by the swing of five-axis machine tool workbench so that need the position that processes always with cutter Vertically.
To sum up, large-scale deep hole thin-wall part is in by above-mentioned technique process, it is not easy to which shake knife will not occur in deformation Line;Workpiece is placed 8 hours in the environment of 200 DEG C by ageing treatment, its internal stress can be eliminated;Improve processing efficiency And workpiece quality, defect rate is reduced, production cost is reduced.
It is emphasized that:It the above is only presently preferred embodiments of the present invention, not the present invention made in any form Limitation, it is every according to the technical essence of the invention to any simple modification, equivalent change and modification made by above example, In the range of still falling within technical solution of the present invention.

Claims (9)

1. a kind of processing technology of deep hole thin-wall part, which is characterized in that the processing step is:
S1, first time shape are opened slightly, are carried out first time roughing to the shape of raw material using wire rod quality, are removed surfacing, adopt Turning defective material shaping workpiece outer shape is removed with milling cutter;
S2, molding deep hole, are punched from the both ends of raw material by drill bit;
The workpiece obtained in step S2 is put and carries out high-temperature process in an oven by S3, ageing treatment, in 100 DEG C~300 DEG C of ring It is placed 6~12 hours under border, removes internal stress;
S4, second of shape are opened slightly, and second of roughing is carried out to the shape of the workpiece obtained in step S3 using milling cutter;
S5, shape finishing, the shape of the workpiece using milling cutter to being obtained in step S4 finish;
S6, deep hole processing carry out semifinishing to deep hole using boring cutter and there are surplus 0.1mm, later by boring cutter to deep hole It is finish-machined to required size;
S7, processing thin-walled, axis class fixing tool is inserted into deep hole, and ensures that inner walls of deep holes and the outer wall of axis class fixing tool paste It closes, the side outer wall of workpiece is processed using small-sized milling cutter, is worked into required size.
2. the processing technology of deep hole thin-wall part according to claim 1, which is characterized in that environment temperature in the step S3 Degree is 200 DEG C.
3. the processing technology of deep hole thin-wall part according to claim 1, which is characterized in that the placement in the step S3 Time is 8 hours.
4. the processing technology of deep hole thin-wall part according to claim 1, which is characterized in that the step S1, S2, S4, A concentration of 15%~20% cutting fluid is all made of in S5, S6 and S7.
5. the processing technology of deep hole thin-wall part according to claim 1, which is characterized in that in the step S1 for the first time A diameter of 80mm of the rough machined wire rod quality of shape, a diameter of 20mm of milling cutter.
6. the processing technology of deep hole thin-wall part according to claim 1, which is characterized in that second in the step S4 The milling cutter diameter that secondary roughing uses is 16mm.
7. the processing technology of deep hole thin-wall part according to claim 1, which is characterized in that finished in the step S5 The milling cutter diameter used is 12mm.
8. the processing technology of deep hole thin-wall part according to claim 1, which is characterized in that used in the step S6 A diameter of 29mm of boring cutter.
9. the processing technology of deep hole thin-wall part according to claim 1, which is characterized in that small-sized in the step S7 Milling cutter diameter is 4mm.
CN201810142001.8A 2018-02-11 2018-02-11 A kind of processing technology of deep hole thin-wall part Pending CN108274202A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109227047A (en) * 2018-10-19 2019-01-18 新乡市恒德机电有限公司 A kind of hydraulic valve deep hole processing technology
CN110181094A (en) * 2019-05-31 2019-08-30 四川工程职业技术学院 A kind of small hole processing method on phosphorus content≤0.6% steel
CN111088421A (en) * 2019-11-08 2020-05-01 万泰机电工业(昆山)有限公司 Aging heat treatment method for inner shell of new energy automobile motor

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5280675A (en) * 1992-07-13 1994-01-25 The Torrington Company Camshaft and method of making a camshaft
CN202964069U (en) * 2012-11-21 2013-06-05 天津市天高机电装备有限公司 Anti-vibration support device for machining of thin-wall deep hole workpiece
CN103331651A (en) * 2012-12-17 2013-10-02 四川凌峰航空液压机械有限公司 Technology treatment method of machining deformation of long and thin hole shaft type thin-wall part
CN104148894A (en) * 2014-07-14 2014-11-19 陕西启源科技发展有限责任公司 Machining method of thin-walled deep-hole welded workpieces
CN104607874A (en) * 2014-12-15 2015-05-13 遵义市遵云制冷配件有限公司 Machining process of ultra-long cylindrical thin-wall part
CN204353776U (en) * 2014-11-25 2015-05-27 鞍钢重型机械有限责任公司 Process the fixture of ultra-thin ladder bushing diapire
CN105414890A (en) * 2015-11-24 2016-03-23 沈阳黎明航空发动机(集团)有限责任公司 Finish machining method for thin-walled conduit
CN105921955A (en) * 2016-06-22 2016-09-07 山西平阳重工机械有限责任公司 Machining method of high-precision step deep hole part

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5280675A (en) * 1992-07-13 1994-01-25 The Torrington Company Camshaft and method of making a camshaft
CN202964069U (en) * 2012-11-21 2013-06-05 天津市天高机电装备有限公司 Anti-vibration support device for machining of thin-wall deep hole workpiece
CN103331651A (en) * 2012-12-17 2013-10-02 四川凌峰航空液压机械有限公司 Technology treatment method of machining deformation of long and thin hole shaft type thin-wall part
CN104148894A (en) * 2014-07-14 2014-11-19 陕西启源科技发展有限责任公司 Machining method of thin-walled deep-hole welded workpieces
CN204353776U (en) * 2014-11-25 2015-05-27 鞍钢重型机械有限责任公司 Process the fixture of ultra-thin ladder bushing diapire
CN104607874A (en) * 2014-12-15 2015-05-13 遵义市遵云制冷配件有限公司 Machining process of ultra-long cylindrical thin-wall part
CN105414890A (en) * 2015-11-24 2016-03-23 沈阳黎明航空发动机(集团)有限责任公司 Finish machining method for thin-walled conduit
CN105921955A (en) * 2016-06-22 2016-09-07 山西平阳重工机械有限责任公司 Machining method of high-precision step deep hole part

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109227047A (en) * 2018-10-19 2019-01-18 新乡市恒德机电有限公司 A kind of hydraulic valve deep hole processing technology
CN110181094A (en) * 2019-05-31 2019-08-30 四川工程职业技术学院 A kind of small hole processing method on phosphorus content≤0.6% steel
CN111088421A (en) * 2019-11-08 2020-05-01 万泰机电工业(昆山)有限公司 Aging heat treatment method for inner shell of new energy automobile motor

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