CN105132667A - Gear surface laser shock texturing method - Google Patents
Gear surface laser shock texturing method Download PDFInfo
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- CN105132667A CN105132667A CN201510616364.7A CN201510616364A CN105132667A CN 105132667 A CN105132667 A CN 105132667A CN 201510616364 A CN201510616364 A CN 201510616364A CN 105132667 A CN105132667 A CN 105132667A
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Abstract
The invention discloses a gear surface laser shock texturing method. The method comprises the following steps: (1) polishing and cleaning a gear tooth surface, air-drying the gear tooth surface and uniformly spraying a black paint in the area near to 1/3 of the tooth top surface and 1/3 of tooth root surface of a pitch line; (2) mounting a gear on a workbench to position and clamp, setting parameters of a laser, allowing the laser beam to illuminate the pre-treated gear tooth surface through a focus lens and forming a micro concave pit; (3) processing a series of micro pit arrays on the gear surface by combining the numerical controlled workbench; (4) removing the black paint on the gear tooth surface by using acetone and cleaning the gear tooth surface by using ultrasonic wave. The laser shock texturing method belongs to the cold processing surface treatment and has no heat effect on the tooth surface; the size of the pit is in micro level and the strength of the gear teeth is not affected. Compared with the existing common gear, the friction coefficient of the gear tooth surface of the gear processed by the laser shock texturing is obviously reduced, and the hardness and the abrasion resistance are obviously increased.
Description
Technical field
The invention belongs to gear surface intensive treatment technology, refer in particular to a kind of method of gear surface laser-impact micro forming.
Background technology
Geartransmission is a kind of type of belt drive be most widely used in mechanical transmission.Because the advantages such as geartransmission is comparatively accurate, efficiency is high, compact construction, reliable operation are widely used in the fields such as aerospace, national defence, bullet train, microelectronics.Easily there are rippling, flank of tooth flow, tooth face agglutination, tooth surface abrasion etc. in the flank of tooth in Meshing Process of Spur Gear near reference circle, has had a strong impact on gear-driven stability and transmission performance.The quality of gear directly affects quality and the life-span of whole transmission system, therefore studies high-level efficiency, high quality, low cost, easy to operate, controllability is strong, free of contamination gear enhancement method has high application prospect and economic worth.
Mainly contain gear surface carburizing, nitridation technique, reiforcing laser impact technology, hot-spraying techniques and current emerging laser quenching technology, ultrasonic deep-rolling technology etc. in the method for current strengthening gear, all there is certain shortcoming.As high in carburizing treatment temperature, distortion is large, and surface quality is low.Gear teeth face roughness after reiforcing laser impact technology process is poor, and the intensity of gear tooth may be had influence on, the apparatus and method (patent No.: 201310384126.9) of a kind of underwater laser shock peening gear pump gear of Xu Dong is appointed as Jiangsu University.Although the gear surface smoothness that ultrasonic deep-rolling technology obtains is better, the wearing and tearing of the course of processing are still difficult to control.
Summary of the invention
Goal of the invention: in order to solve the deficiency in current techniques, the invention provides a kind of method of gear surface laser-impact micro forming, this technology belongs to surperficial cold work, effectively can improve the hardness of gear teeth face, reduces frictional coefficient, improve wear resisting property.
Technical scheme: for achieving the above object, the method for a kind of gear surface laser-impact of the present invention micro forming, this processing unit (plant) comprises laser apparatus, condenser lens, nozzle and numerical control table, NC table, comprises the following steps:
(1) by gear teeth face polishing, and used alcohol washes gear teeth face, then uniformly spray in 1/3 crest top land to the 1/3 root face region near nodel line pitch-dark;
(2) gear is installed on numerical control table, NC table, establish water constraint layer on pitch-dark surface, arrange pulsed laser parameter, laser beam transparent condenser lens is radiated at the gear teeth face of anticipating and forms little semisphere nick hole, pit diameter at 100-300 μm, pit depth 1-40 μm;
(3) by controlling numerical control table, NC table, a series of micro-pit array is processed at pretreated gear teeth face;
(4) gear teeth face is removed with acetone pitch-dark and use ultrasonic cleaning gear teeth face.
Preferably: the water constraint layer thickness in described step (2) is 3mm.
Preferably: in described step (2), the parameter of laser apparatus is optical maser wavelength 532nm, pulsewidth 8ns, single-pulse laser energy 0J<E<2J, spot diameter 0mm<d≤1mm, frequency 1 ~ 10Hz.
Preferably: in described step (3),
A. move along Gear axis direction carrying out worktable in single track laser-impact micro forming;
B. steps A completes, and numerical control table, NC table driven gear turns over the angle of a tooth around axis;
C. repeating step A, B, until each tooth carries out one laser-impact micro forming;
D. numerical control table, NC table driven gear moves a micro forming spacing along gear radial direction, repeating step C;
E. repeating step D, until flank of tooth micro forming region, gear the same side completes laser-impact micro forming.
F. gear is pulled down rear reverse installation, repeating step E, until flank of tooth micro forming region, gear the same side completes laser-impact micro forming.
Preferably: described in state hot spot in steps A micro forming spacing is the radial micro forming spacing of 0<L<3d, step D be vertically 0<L<3d, d be spot diameter.
In the present invention, the gear of laser-impact micro forming strengthening, the hardness of gear teeth face can be significantly improved, reduce frictional coefficient, improve wear resisting property, improve the lubricity in Meshing Process of Spur Gear, reduce the generation of gear abrasive particle and the possibility of the abrasive particle scraping abrased gear flank of tooth, improve the life-span of gear.Laser-impact micro forming region of the present invention, for easily occur rippling, flank of tooth flow, tooth face agglutination, tooth surface abrasion 1/3 crest top land of close nodel line to 1/3 root face region, process a series of micro-pit array.The present invention effectively can improve hardness, reduction frictional coefficient, the raising wear resisting property of gear teeth face, and effectively can also improve the intensity of the gear teeth
Principle of the present invention: gear teeth face easily occur rippling, flank of tooth flow, tooth face agglutination, tooth surface abrasion region carry out laser-impact micro forming, the region frictional coefficient of micro forming reduces, coating metal crystal grain obtains refinement, hardness improves, residual compressive stress is supervened on surface, and wear resisting property is improved.Secondly the nick hole that tooth surface laser impact micro forming produces can catch the abrasive particle produced in Meshing Process of Spur Gear, reduces gear teeth face abrasive wear.When gear works under lubricating condition, the nick hole of generation can store lubricating oil, increases lubrication, prevents dry engagement, reduces wearing and tearing.Effectively can be improved the hardness of gear teeth face by the present invention, reduce frictional coefficient, improve wear resistance.
Beneficial effect: gear surface laser-impact micro molding process of the present invention, compared to existing technology, has the following advantages:
1. the present invention adopts laser-impact micro forming technology to belong to cold working surface treatment, to the flank of tooth without heat affecting.
2. the gear teeth face of laser-impact micro forming strengthening, tooth face hardness and wear resisting property significantly improve.The raising of hardness effectively inhibits the generation of rippling, flank of tooth flow, tooth face agglutination.
3. the nick hole that laser-impact micro forming produces at gear teeth face effectively can catch abrasive particle, prevents gear teeth face abrasive wear.
4. the nick hole that laser-impact micro forming produces can store lubricating oil, prevents the generation of metal to-metal contact during gears meshing, reduces wear.
5. gear teeth face laser-impact micro forming region frictional coefficient reduces.The nick hole produced, in micron level, does not affect the intensity of gear tooth.
Accompanying drawing explanation
Fig. 1 is principle schematic of the present invention;
Fig. 2 is the structural representation of the finished gear teeth face of the present invention;
Fig. 3 is processing unit (plant) schematic diagram of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the present invention is further described.
As shown in Figure 1 to Figure 3, principle of the present invention: install gear 5 on worktable 11, the top of gear 5 is provided with laser apparatus 10, and the laser beam 2 that laser apparatus 10 is launched is radiated on gear 5 by condenser lens 1.Gear tooth is provided with energy-absorbing layer 4 and restraint layer 3 on the surface successively, induces shockwave 7 to form nick hole 6 at the tooth surface of gear 5 by laser beam 2.
As shown in Figure 3, processing unit (plant) of the present invention comprises laser apparatus 10, condenser lens 1 and numerical control table, NC table 11, the laser beam 2 that laser apparatus 10 occurs is radiated at the laser-impact micro forming region 9 of the gear teeth face 8 on worktable 11 by condenser lens 1, surface, gear teeth face micro forming region 9 is provided with energy-absorbing layer pitch-dark 4 and water constraint layer 3.
A method for gear surface laser-impact micro forming, comprises the following steps:
(1) by gear teeth face polishing, and with alcohol washes wiping gear teeth face, then uniformly sprayed near 1/3 crest top land to 1/3 root face region of nodel line pitch-dark, namely near the crest top land of nodel line and 1/3 region in nodel line region and the close root face of nodel line and 1/3 region in nodel line region;
(2) gear is installed on numerical control table, NC table, water constraint layer is established on pitch-dark surface, pulsed laser parameter is set, optical maser wavelength 532nm, pulsewidth 8ns, single-pulse laser energy 0J<E<2J, spot diameter 0mm<d≤1mm, frequency 1 ~ 10Hz.Laser beam by condenser lens 1 be irradiated to the flank of tooth pitch-dark on produce nick hole, micro-pit shape is little semisphere, pit diameter at 100-300 μm, pit depth 1-40 μm;
(3) by controlling numerical control table, NC table, go out a series of micro-pit array at Gear shape process, the gear teeth face micro forming region 9 as shown in Figure 2 of the flank of tooth after machining, forms a series of pit at gear surface.
Can adopt with the following method in step (3), concrete steps are as follows:
A. move along gear axial direction due carrying out worktable in single track laser-impact micro forming;
B. steps A completes, and numerical control table, NC table driven gear turns over the angle of a tooth around axis;
C. repeating step A, B, until each tooth carries out one laser-impact micro forming;
D. numerical control table, NC table driven gear moves a micro forming spacing along gear radial direction, repeating step C;
E. repeating step D, until flank of tooth micro forming region, gear the same side completes laser-impact micro forming.
F. gear is pulled down rear reverse installation, repeating step E, until flank of tooth micro forming region, gear the same side completes laser-impact micro forming.
(4) remove gear surface pitch-dark, and clean gear with Ultrasonic Cleaners.
The above is only the preferred embodiment of the present invention; be noted that for those skilled in the art; under the premise without departing from the principles of the invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (5)
1. the method for gear surface laser-impact micro forming, the processing unit (plant) of the method comprises pulsed laser, condenser lens, nozzle and numerical control table, NC table, comprises the following steps:
(1) by gear teeth face polishing, and used alcohol washes gear teeth face, then uniformly spray in 1/3 crest top land to the 1/3 root face region near nodel line pitch-dark;
(2) gear is installed on numerical control table, NC table, arrange water constraint layer on pitch-dark surface, arrange pulsed laser parameter, laser beam transparent condenser lens is radiated at the gear teeth face of anticipating and forms little semisphere nick hole, pit diameter at 100-300 μm, pit depth 1-40 μm;
(3) by controlling numerical control table, NC table, a series of micro-pit array is processed at pretreated gear surface;
(4) gear teeth face is removed with acetone pitch-dark and use ultrasonic cleaning gear teeth face.
2. the method for gear surface laser-impact micro forming according to claim 1, is characterized in that: the water constraint layer thickness in described step (2) is 3mm.
3. the method for gear surface laser-impact micro forming according to claim 1, it is characterized in that: the laser parameter in described step (2) is: optical maser wavelength 532nm, pulsewidth 8ns, single-pulse laser energy 0J<E<2J, spot diameter 0mm<d≤1mm, frequency 1 ~ 10Hz.
4. the method for gear surface laser-impact micro forming according to claim 1, is characterized in that: described step (3) comprises the following steps:
A. move along Gear axis direction carrying out worktable in single track laser-impact micro forming;
B., after steps A completes, numerical control table, NC table driven gear turns over the angle of a tooth around axis;
C. repeating step A, B, until each tooth carries out one laser-impact micro forming;
D. numerical control table, NC table driven gear moves a micro forming spacing along gear radial direction, repeating step C;
E. repeating step D, until flank of tooth micro forming region, gear the same side completes laser-impact micro forming;
F. gear is pulled down rear reverse installation, repeating step E, until flank of tooth micro forming region, gear the same side completes laser-impact micro forming.
5. the method for gear surface laser-impact micro forming according to claim 4, it is characterized in that: the hot spot of the Laser emission in described steps A in the axial direction micro forming spacing L is 0<L<3d, the radial micro forming spacing of step D is 0<L<3d, d is laser spot diameter.
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| CN201510616364.7A CN105132667B (en) | 2015-09-24 | 2015-09-24 | A kind of method of gear surface laser-impact micro forming |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105671250A (en) * | 2016-03-24 | 2016-06-15 | 中国林业科学研究院木材工业研究所 | Laser impact tensioning device and method for circular saw web |
| CN106122447A (en) * | 2016-07-20 | 2016-11-16 | 西安理工大学 | A kind of belt pulley and the preparation method of belt pulley |
| CN107138866A (en) * | 2017-05-26 | 2017-09-08 | 江苏中科大港激光科技有限公司 | A kind of micro- texturing process method of laser for rotary digging tooth taper surface strengthening |
| CN107805705A (en) * | 2017-11-28 | 2018-03-16 | 广东工业大学 | A kind of method and system for strengthening gear part |
| CN112708752A (en) * | 2020-12-15 | 2021-04-27 | 华南理工大学 | Method and device for strengthening gear surface through laser shot blasting |
| CN114686678A (en) * | 2022-04-24 | 2022-07-01 | 江苏大学 | Laser shock combination strengthening device and method for gear |
| CN114799532A (en) * | 2022-05-09 | 2022-07-29 | 吉林大学 | Method for preparing high-quality amorphous alloy micro-pits by combining laser irradiation with wax sealing polishing |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101318262A (en) * | 2008-06-25 | 2008-12-10 | 江苏大学 | Laser micro-modelling method for cam surface profile |
| CN101376176A (en) * | 2008-09-19 | 2009-03-04 | 江苏大学 | Micro-molding finial on surface prepared by laser and preparation method thereof |
| CN102626826A (en) * | 2012-04-26 | 2012-08-08 | 江苏大学 | High efficiency apparatus and method based on laser shock wave for manufacturing micro grooves |
| CN102962656A (en) * | 2012-11-09 | 2013-03-13 | 江苏大学 | Compound model processing method and device for cutter |
-
2015
- 2015-09-24 CN CN201510616364.7A patent/CN105132667B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101318262A (en) * | 2008-06-25 | 2008-12-10 | 江苏大学 | Laser micro-modelling method for cam surface profile |
| CN101376176A (en) * | 2008-09-19 | 2009-03-04 | 江苏大学 | Micro-molding finial on surface prepared by laser and preparation method thereof |
| CN102626826A (en) * | 2012-04-26 | 2012-08-08 | 江苏大学 | High efficiency apparatus and method based on laser shock wave for manufacturing micro grooves |
| CN102962656A (en) * | 2012-11-09 | 2013-03-13 | 江苏大学 | Compound model processing method and device for cutter |
Non-Patent Citations (1)
| Title |
|---|
| 荣烈润: ""先进绿色：激光冲击表面改性技术"", 《金属加工》 * |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105671250A (en) * | 2016-03-24 | 2016-06-15 | 中国林业科学研究院木材工业研究所 | Laser impact tensioning device and method for circular saw web |
| CN106122447A (en) * | 2016-07-20 | 2016-11-16 | 西安理工大学 | A kind of belt pulley and the preparation method of belt pulley |
| CN107138866A (en) * | 2017-05-26 | 2017-09-08 | 江苏中科大港激光科技有限公司 | A kind of micro- texturing process method of laser for rotary digging tooth taper surface strengthening |
| CN107805705A (en) * | 2017-11-28 | 2018-03-16 | 广东工业大学 | A kind of method and system for strengthening gear part |
| CN112708752A (en) * | 2020-12-15 | 2021-04-27 | 华南理工大学 | Method and device for strengthening gear surface through laser shot blasting |
| CN114686678A (en) * | 2022-04-24 | 2022-07-01 | 江苏大学 | Laser shock combination strengthening device and method for gear |
| CN114686678B (en) * | 2022-04-24 | 2024-01-05 | 江苏大学 | Laser impact combined strengthening device and method for gear |
| CN114799532A (en) * | 2022-05-09 | 2022-07-29 | 吉林大学 | Method for preparing high-quality amorphous alloy micro-pits by combining laser irradiation with wax sealing polishing |
| CN114799532B (en) * | 2022-05-09 | 2023-01-24 | 吉林大学 | Method for preparing high-quality amorphous alloy micro-pits by combining laser irradiation with wax sealing polishing |
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Effective date of registration: 20201026 Address after: 215500 No.13, Caotang Road, Changshu, Suzhou, Jiangsu Province Patentee after: Changshu intellectual property operation center Co.,Ltd. Address before: 212003, No. 2, Mengxi Road, Zhenjiang, Jiangsu Patentee before: JIANGSU University OF SCIENCE AND TECHNOLOGY |
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Address after: 215500 5th floor, building 4, 68 Lianfeng Road, Changfu street, Changshu City, Suzhou City, Jiangsu Province Patentee after: Changshu intellectual property operation center Co.,Ltd. Address before: No.13 caodang Road, Changshu City, Suzhou City, Jiangsu Province Patentee before: Changshu intellectual property operation center Co.,Ltd. |