CN103343188A - Laser shock peening absorbing layer and clamping device thereof - Google Patents
Laser shock peening absorbing layer and clamping device thereof Download PDFInfo
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- CN103343188A CN103343188A CN2013103038716A CN201310303871A CN103343188A CN 103343188 A CN103343188 A CN 103343188A CN 2013103038716 A CN2013103038716 A CN 2013103038716A CN 201310303871 A CN201310303871 A CN 201310303871A CN 103343188 A CN103343188 A CN 103343188A
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- absorbing layer
- absorption layer
- laser shock
- laser
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- 230000035939 shock Effects 0.000 title abstract description 10
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 10
- SZVJSHCCFOBDDC-UHFFFAOYSA-N ferrosoferric oxide Chemical compound O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000000843 powder Substances 0.000 claims abstract description 8
- 239000002184 metal Substances 0.000 claims abstract description 3
- 229910052751 metal Inorganic materials 0.000 claims abstract description 3
- 238000010521 absorption reaction Methods 0.000 claims description 57
- 239000011230 binding agent Substances 0.000 claims description 11
- 229910052799 carbon Inorganic materials 0.000 claims description 9
- 239000000428 dust Substances 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 6
- 238000000576 coating method Methods 0.000 abstract description 8
- 239000011248 coating agent Substances 0.000 abstract description 5
- 239000003795 chemical substances by application Substances 0.000 abstract 1
- 230000005389 magnetism Effects 0.000 abstract 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 8
- 230000000694 effects Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 239000002245 particle Substances 0.000 description 6
- 239000003292 glue Substances 0.000 description 5
- 239000000654 additive Substances 0.000 description 4
- 230000000996 additive effect Effects 0.000 description 4
- 239000000377 silicon dioxide Substances 0.000 description 4
- 238000007605 air drying Methods 0.000 description 3
- 239000005030 aluminium foil Substances 0.000 description 2
- 239000013530 defoamer Substances 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000002390 adhesive tape Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 210000003720 plasmablast Anatomy 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
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- Laser Beam Processing (AREA)
- Laminated Bodies (AREA)
Abstract
The invention discloses a laser shock peening absorbing layer and a clamping device of the laser shock peening absorbing layer. The laser shock peening absorbing layer mainly comprises main components of ferroferric oxide powder, an adhesion agent and carbon powder, wherein the ferroferric oxide is black, and has a good absorbing function for laser adopted by the invention, and also has magnetism; the clamping device of the absorbing layer is an electromagnet arranged on the back surface of a workpiece, the absorbing layer adopts a coating mode, is directly covered on the surface of the workpiece, and is aired in air, with the coating thickness of 80-150 micrometers; and after the laser shock peening is finished, the electromagnet is enabled to be in a power failure sate, and is capable of automatically enabling the absorbing layer to drop from the surface of the workpiece. By adopting the special absorbing layer and the clamping device of the special absorbing layer disclosed by the invention, the energy loss of laser shock waves can be remarkably reduced, the absorbing layer can be enabled to be automatically drop, and the surface subjected to laser shock does not need to be cleaned for the second time, thus the laser shock peening absorbing layer can be applied to laser shock peening of the surface of a metal workpiece.
Description
Technical field
The invention belongs to technical field of laser processing, be specifically related to a kind of reiforcing laser impact technology.
Background technology
Laser impact intensified is a kind of novel material surface strengthening technology, can obtain high-amplitude residual compressive stress layer on the metallic article surface, compares with conventional blasting technology the fatigue lifetime of improving product greatly, and its residual compressive stress layer is darker; The principle of laser-impact is to utilize pulse laser to produce the plasma blast with absorption layer under restrained condition; can produce intensity up to the pressure of several gigapascals; this pressure is transmitted to workpiece by absorption layer; can produce the high-amplitude residual compressive stress to workpiece surface; because the provide protection of absorption layer; workpiece surface can not be subjected to hot calcination; the energy of pulse laser is generally 1 ~ 100J in the laser-impact; pulsewidth is 10 ~ 30ns; constrained layer material is generally moisture film or glass, and the absorption layer material is that aluminium foil or other have the material of good absorption effect to laser.At the beginning of 21 century, the U.S. is applied to the reinforcement of F101, F119 and F414 engine blade with laser impact technology and makes.
In laser impact intensified engine blade process, absorption layer commonly used has aluminium foil and organic adhesive tape, is adsorbed on pending workpiece surface in order to make absorption layer, and the one side at absorption layer applies glue usually, the one side that applies glue is bonded at pending workpiece surface, because glue has certain thickness, when this will cause shock motion to workpiece surface, brings very big loss, influence impact effect, simultaneously, glue is attached to workpiece surface, need clean again workpiece; Application number is that 200610039503.5 Chinese patent " a kind of Stripable paint of handling for laser-impact " has proposed a kind of Stripable paint, coatings formulated is coated on the workpiece, carry out laser impact intensified after the drying, because in the laser-impact process, shockwave is in the reflection of coating and workpiece surface, produce powerful tensile stress, this will cause coating and workpiece surface to come off, and influence subsequent disposal.
Summary of the invention
The objective of the invention is to propose a kind of laser impact intensified absorption layer and gripping unit thereof used, make absorption layer be close to workpiece surface all the time, avoiding coating to come off from workpiece surface influences subsequent disposal.
In order to solve above technical problem, the present invention prepares one deck absorption layer at workpiece surface, and the preparation raw material comprises Z 250, binding agent, carbon dust etc., and at the workpiece reverse side one electro-magnet is installed, make absorption layer be close to workpiece surface all the time, concrete technical scheme is as follows:
A kind of laser impact intensified with absorption layer and gripping unit thereof, it is characterized in that: comprise the absorption layer (1), workpiece (2) and the electro-magnet (3) that link to each other successively from top to bottom; The material of workpiece (2) is metal;
Described absorption layer (1) adopts the mode that applies, and directly overlays workpiece (2) surface, dries in air;
The main component of described absorption layer (1) is ferroferric oxide powder, binding agent and carbon dust, and described ferroferric oxide powder volumn concentration is not less than 6%, and the volumn concentration of binding agent is not less than 70%, and the volumn concentration of carbon dust is not less than 10%; Electro-magnet (3) adsorbed close of absorption layer (1) by being positioned at workpiece (2) reverse side is on the pending surface of workpiece (2).
Described absorption layer (1) thickness is 80 ~ 150 microns, dries in air.
The main one-tenth preferred content of described absorption layer (1) is: ferroferric oxide powder content is not less than 8%, and the content of binding agent is not less than 75%, and the content of carbon dust is not less than 12%.
Working process of the present inventionFor: wait absorption layer behind air drying, at the workpiece reverse side electro-magnet is installed, and electro-magnet switched on, it is laser impact intensified then workpiece to be carried out pointwise, in the laser impact intensified process, because the impedance of absorption layer and workpiece surface does not match, cause haling stress producing at the interface, make absorption layer follow workpiece surface to separate, owing to contain Z 250 in the absorption layer, the firm workpiece surface that is bonded at again under the effect of workpiece reverse side electro-magnet is after laser impact intensified finishing, with the electro-magnet outage, absorption layer is come off automatically from workpiece surface.
The present invention has beneficial effectFerroferric oxide powder is black, and the laser used to the present invention has good absorption function, and has magnetic; Because do not have glue between absorption layer and the workpiece surface, after laser impact intensified finishing dealing with, workpiece surface need not carry out subsequent disposal; After the laser-impact processing through a pulse, under the laser blast wave effect, the tensile stress that absorption layer and workpiece surface produce comes off absorption layer and workpiece surface, because absorption layer is added with Z 250, has magnetic, under the effect of workpiece reverse side electro-magnet, be close to workpiece surface again, can not cause coming off; After laser-impact is finished dealing with, with the electro-magnet outage, absorption layer is come off.
Description of drawings
Fig. 1 is laser impact intensified synoptic diagram with absorption layer and gripping unit thereof.
Among the figure: 1 absorption layer, 2 workpiece, 3 electro-magnet.
Embodiment
Be better to set forth implementation detail of the present invention, below in conjunction with accompanying drawing to a kind of laser impact intensifiedly be elaborated with absorption layer and gripping unit thereof of the present invention.
Embodiment one:
Thickness is the absorption layer 1 about 80 microns in workpiece 2 pending surface coatings, the component volumn concentration of absorption layer 1 is: 6% particle diameter is 8 ~ 10 microns ferriferrous oxide particles, 17% particle diameter is 8 ~ 10 microns carbon dust, 70% binding agent and 5% additive.Wherein, the component of binding agent is: water 70%, and silica oil 15%, silica resin 15%, the main component of additive is stablizer and defoamer.
After the laser-impact of workpiece 2 is finished dealing with, with electro-magnet 3 outages, absorption layer 1 will come off from workpiece 2 surfaces.
Embodiment two:
Thickness is the absorption layer 1 about 100 microns in workpiece 2 pending surface coatings, the component volumn concentration of absorption layer 1 is: 8% particle diameter is 8 ~ 10 microns ferriferrous oxide particles, 12% particle diameter is 8 ~ 10 microns carbon dust, 75% binding agent and 5% additive.Wherein, the component of binding agent is: water 70%, and silica oil 15%, silica resin 15%, the main component of additive is stablizer and defoamer.
After the laser-impact of workpiece 2 is finished dealing with, with electro-magnet 3 outages, absorption layer 1 will come off from workpiece 2 surfaces.
Claims (3)
1. laser impact intensified absorption layer and the gripping unit thereof used is characterized in that: comprise the absorption layer (1), workpiece (2) and the electro-magnet (3) that link to each other successively from top to bottom; The material of workpiece (2) is metal;
Described absorption layer (1) adopts the mode that applies, and directly overlays workpiece (2) surface, dries in air;
The main component of described absorption layer (1) is ferroferric oxide powder, binding agent and carbon dust, and described ferroferric oxide powder volumn concentration is not less than 6%, and the volumn concentration of binding agent is not less than 70%, and the volumn concentration of carbon dust is not less than 10%; Electro-magnet (3) adsorbed close of absorption layer (1) by being positioned at workpiece (2) reverse side is on the pending surface of workpiece (2).
2. as claimed in claim 1 a kind of laser impact intensified with absorption layer and gripping unit thereof, it is characterized in that: described absorption layer (1) thickness is 80 ~ 150 microns.
3. as claimed in claim 1 a kind of laser impact intensified with absorption layer and gripping unit thereof, it is characterized in that: the main one-tenth preferred content of described absorption layer (1) is: ferroferric oxide powder content is not less than 8%, the content of binding agent is not less than 75%, and the content of carbon dust is not less than 12%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310303871.6A CN103343188B (en) | 2013-07-19 | 2013-07-19 | Laser shock peening absorbing layer and clamping device thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310303871.6A CN103343188B (en) | 2013-07-19 | 2013-07-19 | Laser shock peening absorbing layer and clamping device thereof |
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| Publication Number | Publication Date |
|---|---|
| CN103343188A true CN103343188A (en) | 2013-10-09 |
| CN103343188B CN103343188B (en) | 2015-06-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310303871.6A Active CN103343188B (en) | 2013-07-19 | 2013-07-19 | Laser shock peening absorbing layer and clamping device thereof |
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| Country | Link |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103710493A (en) * | 2013-12-23 | 2014-04-09 | 江苏大学 | Laser shock processing method and device for liquid-state absorbing layer and liquid-state restraint layer |
| CN109187336A (en) * | 2018-08-29 | 2019-01-11 | 中国人民解放军空军工程大学 | A kind of magnetostriction adhesive tape for the detection of laser blast wave binding force |
| CN112609066A (en) * | 2020-11-27 | 2021-04-06 | 山东大学 | Curved surface uniform strengthening method based on single-point double oblique incidence laser impact |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1109594A (en) * | 1994-04-22 | 1995-10-04 | 清华大学 | Acoustic coupling method and apparatus for sound emission detection |
| CN1834176A (en) * | 2006-04-13 | 2006-09-20 | 江苏大学 | Stripable paint for laser impact treatment |
| US7868268B1 (en) * | 2003-09-02 | 2011-01-11 | Lsp Technologies, Inc. | Laser peening process and apparatus using a liquid erosion-resistant opaque overlay coating |
| CN102494821A (en) * | 2011-11-25 | 2012-06-13 | 江苏大学 | Device for detecting laser shock wave pressure |
-
2013
- 2013-07-19 CN CN201310303871.6A patent/CN103343188B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1109594A (en) * | 1994-04-22 | 1995-10-04 | 清华大学 | Acoustic coupling method and apparatus for sound emission detection |
| US7868268B1 (en) * | 2003-09-02 | 2011-01-11 | Lsp Technologies, Inc. | Laser peening process and apparatus using a liquid erosion-resistant opaque overlay coating |
| CN1834176A (en) * | 2006-04-13 | 2006-09-20 | 江苏大学 | Stripable paint for laser impact treatment |
| CN102494821A (en) * | 2011-11-25 | 2012-06-13 | 江苏大学 | Device for detecting laser shock wave pressure |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103710493A (en) * | 2013-12-23 | 2014-04-09 | 江苏大学 | Laser shock processing method and device for liquid-state absorbing layer and liquid-state restraint layer |
| CN103710493B (en) * | 2013-12-23 | 2015-12-09 | 江苏大学 | The laser impact processing method of the liquid restraint layer of a kind of liquid absorbent layer and device |
| CN109187336A (en) * | 2018-08-29 | 2019-01-11 | 中国人民解放军空军工程大学 | A kind of magnetostriction adhesive tape for the detection of laser blast wave binding force |
| CN112609066A (en) * | 2020-11-27 | 2021-04-06 | 山东大学 | Curved surface uniform strengthening method based on single-point double oblique incidence laser impact |
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| Publication number | Publication date |
|---|---|
| CN103343188B (en) | 2015-06-24 |
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Inventor after: Dai Fengze Inventor after: Wen Deping Inventor after: Zhang Yongkang Inventor before: Dai Fengze Inventor before: Yu Lu Inventor before: Wen Deping Inventor before: Zhang Yongkang |
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Effective date of registration: 20201229 Address after: No. 101, Nanxu Avenue, Zhenjiang City, Jiangsu Province, 212000 Patentee after: JIANGSU HUIZHI INTELLECTUAL PROPERTY SERVICES Co.,Ltd. Address before: 212013 No. 301, Xuefu Road, Zhenjiang, Jiangsu Patentee before: JIANGSU University Effective date of registration: 20201229 Address after: 224200 No.8 Beihai Road, Dongtai City, Yancheng City, Jiangsu Province Patentee after: Dongtai science and Technology Service Center Address before: No. 101, Nanxu Avenue, Zhenjiang City, Jiangsu Province, 212000 Patentee before: JIANGSU HUIZHI INTELLECTUAL PROPERTY SERVICES Co.,Ltd. |
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Effective date of registration: 20210323 Address after: Room 809, Kechuang building, Dongtai hi tech Industrial Development Zone, Yancheng City, Jiangsu Province 224200 Patentee after: Dongtai tepusong Machinery Equipment Co.,Ltd. Address before: 224200 No.8 Beihai Road, Dongtai City, Yancheng City, Jiangsu Province Patentee before: Dongtai science and Technology Service Center |
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Effective date of registration: 20210426 Address after: 48 No. 224200 Yancheng City Dongtai city of Jiangsu Province East New District East Avenue Patentee after: Dongtai Chengdong science and Technology Pioneer Park Management Co.,Ltd. Address before: Room 809, Kechuang building, Dongtai hi tech Industrial Development Zone, Yancheng City, Jiangsu Province 224200 Patentee before: Dongtai tepusong Machinery Equipment Co.,Ltd. |
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Application publication date: 20131009 Assignee: Dongtai tepusong Machinery Equipment Co.,Ltd. Assignor: Dongtai Chengdong science and Technology Pioneer Park Management Co.,Ltd. Contract record no.: X2023980043158 Denomination of invention: An absorption layer and its clamping device for laser shock strengthening Granted publication date: 20150624 License type: Common License Record date: 20231012 |
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Application publication date: 20131009 Assignee: Dongtai Donggao Electronic Information Technology Co.,Ltd. Assignor: Dongtai Chengdong science and Technology Pioneer Park Management Co.,Ltd. Contract record no.: X2023980045160 Denomination of invention: An absorption layer and its clamping device for laser shock strengthening Granted publication date: 20150624 License type: Common License Record date: 20231102 |
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Application publication date: 20131009 Assignee: Dongtai Gaoxin Mechanical Equipment Co.,Ltd. Assignor: Dongtai Chengdong science and Technology Pioneer Park Management Co.,Ltd. Contract record no.: X2023980046304 Denomination of invention: An absorption layer and its clamping device for laser shock strengthening Granted publication date: 20150624 License type: Common License Record date: 20231110 |