CN108213874A - Titanium alloy hollow thin-wall long shaft part processing method - Google Patents
Titanium alloy hollow thin-wall long shaft part processing method Download PDFInfo
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- CN108213874A CN108213874A CN201810030159.6A CN201810030159A CN108213874A CN 108213874 A CN108213874 A CN 108213874A CN 201810030159 A CN201810030159 A CN 201810030159A CN 108213874 A CN108213874 A CN 108213874A
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- China
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- processing
- center hole
- outer diameter
- endoporus
- titanium alloy
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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 present invention relates to a kind of processes of titanium alloy hollow thin-wall long shaft part processing, process part outer mold surface by using high-precision numerical control equipment, ensure appearance and size precision and form accuracy；By annulus clamp, precision-machined parts both ends center hole eliminates clamping force deviation from circular from caused by center hole；Retaining element finishing outer mold surface is held out against using top, three-jaw is effectively prevented or four paws chuck accommodates the clamping deformation that part generates.It is of the invention final realize the processing of titanium alloy hollow thin-wall long shaft part after, dimensional accuracy≤0.01mm of part, position of related features≤0.008mm, interior external form faces the wall and meditates thick error≤0.05mm.
Description
Technical field
The present invention relates to a kind of processing method, especially a kind of high-precision hollow thin-wall long axis titanium alloy component processing side
Method.
Background technology
The processing technology of high precision titanium alloy hollow thin-walled long shaft part is always the technical barrier of aviation field, same to fashionable dress
Folder deformation, the control of titanium alloy grinding burn and bottleneck recognized within the industry, Applications In Risk Technique.At present, length≤500mm, outer diameter
Within 80mm, wall thickness 1.5mm, dimensional accuracy≤0.01mm, the titanium alloy component of position of related features≤0.008 uses grinding method more
Processing, not only processing efficiency is low, serious waste of resources, but also machining accuracy it is difficult to ensure that, there are great product quality hidden danger.
Invention content
The present invention relates to a kind of process of titanium alloy hollow thin-wall long shaft part processing, flow is succinct, it is ensured that production
Product size positions precision, while promote processing efficiency.
The present invention specific implementation step be：
1st, machining titanium alloy bar both ends center hole
Using center lathe, holding parts middle part processes center hole in part one end, turns in the middle part of part, then holding parts, add
Work other end center hole；
2nd, roughing outer diameter
Using center lathe, part center hole is withstood in both sides, and roughing part outer diameter ensures part outer diameter error after processing
≤0.05mm；
3rd, endoporus is processed
Using center lathe, using the drill bit of wf15 alloy materials, inner bore of part is processed from both ends, ensures hole size after processing
Deviation≤0.1mm meets platform≤0.2mm；
4th, stress processing is eliminated
Part is carried out using vacuum drying oven to eliminate stress processing, 100~150 DEG C/h of temperature rise rate often heats up 100~150 DEG C, protects
1~1.5h of temperature, temperature rise to 550 ± 10 DEG C, 2.5~3h of soaking time, add residual stress to eliminate machine, reduce finishing turning
Deformation；
5th, semifinishing endoporus
Inner bore of part is processed using numerical control device, endoporus presses final size made allowance 2mm, and processes center hole；The number
Spindle rotation accuracy≤0.005mm of control equipment, X-axis and Z axis diameter positioning accuracy≤0.004mm, repetitive positioning accuracy≤
0.005mm；
6th, semifinishing outer diameter
Above-mentioned or equal accuracy data equipment is continuing with, part uses both ends center hole clamping, processes part outer diameter, protects
Outer diameter error≤0.02mm after card processing, outer diameter press final size made allowance 2mm；
7th, endoporus is finished
It is designed before processing and makes annulus fixture, the fixture internal-and external diameter concentricity is within 0.005mm, fixture endoporus and zero
Part major diameter fit gap≤0.015mm, 10 ± 0.05mm of fixture wall thickness；The soft pawl of turning ensures soft pawl bounce≤0.01mm, uses
Soft pawl steps up fixture, then accommodates part rear end diameter, and centering retaining part part bounce≤0.005mm is clamped using centre frame
Part front end, before centering part after ending pulsation≤0.01mm, turning part endoporus processes part top again to predetermined size
Pointed orifice；
8th, precision-machined parts shape
Use both ends center hole clamping, processing part outer diameter to desired size.
For the present invention by using high-precision numerical control equipment, Z axis positioning accuracy is very high, processes part outer mold surface, it is ensured that
Appearance and size precision and form accuracy≤0.005mm；In finishing passes, pass through annulus clamp, precision-machined parts both ends
Center hole (as finishes outer mold surface machining benchmark), can eliminate clamping force deviation from circular from caused by center hole；Use top
Pinnacle fastens Finishing Parts Machining outer mold surface, effectively prevents three-jaw or four paws chuck accommodates the clamping deformation that part generates.I.e.
Carry out retaining element instead of radial clamping force using axial clamping force, eliminate clamping deformation；Finally, by the invention it is possible to realize
After the processing of titanium alloy hollow thin-wall long shaft part, dimensional accuracy≤0.01mm of part, position of related features≤0.008mm, interior external form
Face wall thickness deflection≤0.05mm.
Specific embodiment
A kind of process of titanium alloy hollow thin-wall long shaft part processing, specific implementation step are：
1st, machining titanium alloy bar both ends center hole
Using center lathe, holding parts middle part processes center hole in part one end, turns in the middle part of part, then holding parts, add
Work other end center hole；
2nd, roughing outer diameter
Using center lathe, part center hole is withstood in both sides, and roughing part outer diameter ensures part outer diameter error after processing
≤0.05mm；
3rd, endoporus is processed
Using center lathe, using the drill bit of wf15 alloy materials, inner bore of part is processed from both ends, ensures hole size after processing
Deviation≤0.1mm meets platform≤0.2mm；
4th, stress processing is eliminated
Part is carried out using vacuum drying oven to eliminate stress processing, 100~150 DEG C/h of temperature rise rate often heats up 100~150 DEG C, protects
1~1.5h of temperature, temperature rise to 550 ± 10 DEG C, 2.5~3h of soaking time, add residual stress to eliminate machine, reduce finishing turning
Deformation；
5th, semifinishing endoporus
Inner bore of part is processed using numerical control device, endoporus presses final size made allowance 2mm, and processes center hole；The number
Spindle rotation accuracy≤0.005mm of control equipment, X-axis and Z axis diameter positioning accuracy≤0.004mm, repetitive positioning accuracy≤
0.005mm；
6th, semifinishing outer diameter
Above-mentioned or equal accuracy data equipment is continuing with, part uses both ends center hole clamping, processes part outer diameter, protects
Outer diameter error≤0.02mm after card processing, outer diameter press final size made allowance 2mm；
7th, endoporus is finished
It is designed before processing and makes annulus fixture, the fixture internal-and external diameter concentricity is within 0.005mm, fixture endoporus and zero
Part major diameter fit gap≤0.015mm, 10 ± 0.05mm of fixture wall thickness；The soft pawl of turning ensures soft pawl bounce≤0.01mm, uses
Soft pawl steps up fixture, then accommodates part rear end diameter, and centering retaining part part bounce≤0.005mm is clamped using centre frame
Part front end, before centering part after ending pulsation≤0.01mm, turning part endoporus processes part top again to predetermined size
Pointed orifice；
8th, precision-machined parts shape
Use both ends center hole clamping, processing part outer diameter to desired size.
Claims (1)
1. a kind of titanium alloy hollow thin-wall long shaft part processing method, which is characterized in that the method includes the following steps：
1) machining titanium alloy bar both ends center hole
Using center lathe, holding parts middle part processes center hole in part one end, turns in the middle part of part, then holding parts, add
Work other end center hole；
2) roughing outer diameter
Using center lathe, part center hole is withstood in both sides, and roughing part outer diameter ensures part outer diameter error after processing
≤0.05mm；
3) endoporus is processed
Using center lathe, using the drill bit of wf15 alloy materials, inner bore of part is processed from both ends, ensures hole size after processing
Deviation≤0.1mm meets platform≤0.2mm；
4) stress processing is eliminated
Part is carried out using vacuum drying oven to eliminate stress processing, 100~150 DEG C/h of temperature rise rate often heats up 100~150 DEG C, protects
1~1.5h of temperature, temperature rise to 550 ± 10 DEG C, 2.5~3h of soaking time, add residual stress to eliminate machine, reduce finishing turning
Deformation；
5) semifinishing endoporus
Inner bore of part is processed using numerical control device, endoporus presses final size made allowance 2mm, and processes center hole；The number
Spindle rotation accuracy≤0.005mm of control equipment, X-axis and Z axis diameter positioning accuracy≤0.004mm, repetitive positioning accuracy≤
0.005mm；
6) semifinishing outer diameter
Above-mentioned or equal accuracy data equipment is continuing with, part uses both ends center hole clamping, processes part outer diameter, protects
Outer diameter error≤0.02mm after card processing, outer diameter press final size made allowance 2mm；
7) endoporus is finished
It is designed before processing and makes annulus fixture, the fixture internal-and external diameter concentricity is within 0.005mm, fixture endoporus and zero
Part major diameter fit gap≤0.015mm, 10 ± 0.05mm of fixture wall thickness；The soft pawl of turning ensures soft pawl bounce≤0.01mm, uses
Soft pawl steps up fixture, then accommodates part rear end diameter, and centering retaining part part bounce≤0.005mm is clamped using centre frame
Part front end, before centering part after ending pulsation≤0.01mm, turning part endoporus processes part top again to predetermined size
Pointed orifice；
8) precision-machined parts shape
Use both ends center hole clamping, processing part outer diameter to desired size.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810030159.6A CN108213874A (en) | 2018-01-12 | 2018-01-12 | Titanium alloy hollow thin-wall long shaft part processing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810030159.6A CN108213874A (en) | 2018-01-12 | 2018-01-12 | Titanium alloy hollow thin-wall long shaft part processing method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108213874A true CN108213874A (en) | 2018-06-29 |
Family
ID=62640944
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810030159.6A Pending CN108213874A (en) | 2018-01-12 | 2018-01-12 | Titanium alloy hollow thin-wall long shaft part processing method |
Country Status (1)
| Country | Link |
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| CN (1) | CN108213874A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110421314A (en) * | 2018-11-14 | 2019-11-08 | 西安成立航空制造有限公司 | Annular groove thin-walled parts processing technology |
| CN110757094A (en) * | 2019-10-31 | 2020-02-07 | 中航飞机起落架有限责任公司 | Turning method of cylindrical stepped thin-wall part |
| CN113829136A (en) * | 2021-10-27 | 2021-12-24 | 成都青山实业有限责任公司 | Machining method suitable for hollow thin-wall gear shaft |
| CN113909821A (en) * | 2021-10-28 | 2022-01-11 | 航天精工股份有限公司 | Precise numerical control machining method for titanium alloy thin-wall lens barrel part |
| CN115229435A (en) * | 2022-06-20 | 2022-10-25 | 中国航发哈尔滨东安发动机有限公司 | Machining method for ensuring chromium plating outer diameter of thin-wall slender guide cylinder |
| CN115338599A (en) * | 2022-07-15 | 2022-11-15 | 无锡亿锞精密机械有限公司 | High-precision processing technology for concentricity of inner hole and excircle of thin-wall pipe fitting |
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| JPS60118426A (en) * | 1983-12-01 | 1985-06-25 | Toshiba Corp | Method of forming inner diameter section of cylinder |
| CN101244507A (en) * | 2007-02-15 | 2008-08-20 | 洛阳双瑞精铸钛业有限公司 | Process for manufacturing TC4 titanium alloy thin wall overpressure resistant barrel |
| CN102430893A (en) * | 2011-09-15 | 2012-05-02 | 东方电气集团东方电机有限公司 | Manufacturing method of small-inner-diameter hollow spindle |
| CN103495844A (en) * | 2013-10-14 | 2014-01-08 | 南车戚墅堰机车有限公司 | Machining technology for high-precision outer conical surface thin wall sleeve |
| CN103949851A (en) * | 2014-04-16 | 2014-07-30 | 贵州凯星液力传动机械有限公司 | Processing method of aluminum alloy thin-wall cylindrical part |
| CN107182230B (en) * | 2011-12-20 | 2014-08-13 | 哈尔滨东安发动机（集团）有限公司 | The processing method of hollow thin-wall slender axles |
| CN104551541A (en) * | 2013-10-29 | 2015-04-29 | 青岛天恒机械有限公司 | Titanium alloy thin wall part spinning method |
| CN106862880A (en) * | 2017-03-06 | 2017-06-20 | 中航动力株洲航空零部件制造有限公司 | hollow shaft processing method |
-
2018
- 2018-01-12 CN CN201810030159.6A patent/CN108213874A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60118426A (en) * | 1983-12-01 | 1985-06-25 | Toshiba Corp | Method of forming inner diameter section of cylinder |
| CN101244507A (en) * | 2007-02-15 | 2008-08-20 | 洛阳双瑞精铸钛业有限公司 | Process for manufacturing TC4 titanium alloy thin wall overpressure resistant barrel |
| CN102430893A (en) * | 2011-09-15 | 2012-05-02 | 东方电气集团东方电机有限公司 | Manufacturing method of small-inner-diameter hollow spindle |
| CN107182230B (en) * | 2011-12-20 | 2014-08-13 | 哈尔滨东安发动机（集团）有限公司 | The processing method of hollow thin-wall slender axles |
| CN103495844A (en) * | 2013-10-14 | 2014-01-08 | 南车戚墅堰机车有限公司 | Machining technology for high-precision outer conical surface thin wall sleeve |
| CN104551541A (en) * | 2013-10-29 | 2015-04-29 | 青岛天恒机械有限公司 | Titanium alloy thin wall part spinning method |
| CN103949851A (en) * | 2014-04-16 | 2014-07-30 | 贵州凯星液力传动机械有限公司 | Processing method of aluminum alloy thin-wall cylindrical part |
| CN106862880A (en) * | 2017-03-06 | 2017-06-20 | 中航动力株洲航空零部件制造有限公司 | hollow shaft processing method |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110421314A (en) * | 2018-11-14 | 2019-11-08 | 西安成立航空制造有限公司 | Annular groove thin-walled parts processing technology |
| CN110757094A (en) * | 2019-10-31 | 2020-02-07 | 中航飞机起落架有限责任公司 | Turning method of cylindrical stepped thin-wall part |
| CN113829136A (en) * | 2021-10-27 | 2021-12-24 | 成都青山实业有限责任公司 | Machining method suitable for hollow thin-wall gear shaft |
| CN113909821A (en) * | 2021-10-28 | 2022-01-11 | 航天精工股份有限公司 | Precise numerical control machining method for titanium alloy thin-wall lens barrel part |
| CN115229435A (en) * | 2022-06-20 | 2022-10-25 | 中国航发哈尔滨东安发动机有限公司 | Machining method for ensuring chromium plating outer diameter of thin-wall slender guide cylinder |
| CN115229435B (en) * | 2022-06-20 | 2023-10-24 | 中国航发哈尔滨东安发动机有限公司 | Machining method for guaranteeing chromium plating outer diameter size of thin-wall slender guide cylinder |
| CN115338599A (en) * | 2022-07-15 | 2022-11-15 | 无锡亿锞精密机械有限公司 | High-precision processing technology for concentricity of inner hole and excircle of thin-wall pipe fitting |
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Legal Events
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information |
Inventor after: Ye Jun Inventor after: Wang Chunlei Inventor after: Zhu Guangzhao Inventor after: Wang Shuhang Inventor after: Mou Zongli Inventor after: Sun Hao Inventor after: Guan Yunchao Inventor before: Huang Xiao Inventor before: Guo Xinyan Inventor before: Zhang Yang Inventor before: Guan Yunchao Inventor before: Sun Hao Inventor before: Mou Zongli Inventor before: Wang Chunlei Inventor before: Ye Jun Inventor before: Zhu Guangzhao Inventor before: Wang Shuhang |
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| CB03 | Change of inventor or designer information | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180629 |
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| WD01 | Invention patent application deemed withdrawn after publication |