CN104073622A - Light path converting device applicable to laser impact treatment - Google Patents
Light path converting device applicable to laser impact treatment Download PDFInfo
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- CN104073622A CN104073622A CN201410286001.7A CN201410286001A CN104073622A CN 104073622 A CN104073622 A CN 104073622A CN 201410286001 A CN201410286001 A CN 201410286001A CN 104073622 A CN104073622 A CN 104073622A
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- light path
- plane mirror
- convex lens
- refraction
- laser
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Abstract
The invention discloses a light path converting device applicable to laser impact treatment. The light path converting device comprises a light path reflection device, a light path refraction device and a light path converting device bracket, wherein the light path refraction device is fixed in a middle position of the light path converting device bracket; the light path reflection device is fixed at the upper end of the light path converting device bracket; the position of the light path reflection device is adjusted to locate laser indication light in a central position of a plane mirror; an expected size of a light spot is obtained by constantly adjusting the distance between the light path refraction device and the light path reflection device; the light path converting device can feed the laser light emitted from a laser to the surface of a test piece to be impacted through reflection and refraction, so as to perform laser impact treatment on the test piece. By adopting the device, the laser light can simply and efficiently act on the surface of the test piece to be impacted to perform laser impact treatment, and thus the properties of a material are improved.
Description
Technical field
The invention belongs to machinofacture and laser processing application technical field, relate in particular to a kind of optical path switching device that is applicable to laser-impact processing.
Background technology
Laser shock processing is the process for treating surface that the laser beam of high power density, short pulse and matter interaction produce strong shock wave and improve a kind of novelty of material surface physics and mechanical property.Laser-impact is processed the high pressure mechanics effect producing makes metallic surface produce high-strain-rate viscous deformation, thereby improves the microtexture of material surface and produce the residual compressive stress of high amplitude, improves the antifatigue of material, the performance such as anticorrosive.
Summary of the invention
The object of the invention is provides optical path switching device for realizing laser-impact processing.Because blacking will be carried out in the test specimen surface of carrying out laser-impact processing, and the test specimen of blacking will be put into the vessel that fill water, this causes the laser of launching in horizontal direction to be difficult to be irradiated to test specimen surface.In order to make the laser that level is launched can vertically act on body surface, just need to introduce optical path switching device, thereby realize laser-impact processing, improve the antifatigue of material, the performance such as anticorrosive.
For achieving the above object, the technical scheme that the present invention takes is a kind of optical path switching device that is applicable to laser-impact processing, and this device comprises light path reflection unit 1, refraction of light path device 2, treats impact test piece 3, optical path switching device support 4, laser apparatus 5; Wherein, light path reflection unit 1 comprises light path reflection unit bearing 11, plane mirror anchor 12, plane mirror 13; Refraction of light path device 2 comprises refraction of light path device seat 21, adjusting slider 22, convex lens 23, convex lens anchor 24; Particularly, laser apparatus 5 is to light path reflection unit 1 Emission Lasers, via light path reflection unit 1 reflect laggard enter light path refracting means 2, and treat impact test piece 3 and carry out laser-impact processing; Described plane mirror 13 is arranged on plane mirror anchor 12, plane mirror anchor 12 is arranged on reflection unit bearing 11, reflection unit bearing 11 is arranged on optical path switching device support 4 tops, and plane mirror 13 is horizontal by 45 ° of angles, and the laser vertical direction that level can be injected reflects;
Convex lens 23 are fixed on convex lens anchor 24 and are horizontally disposed, and adjusting slider 22 is fixed on refraction of light path device seat 21, and convex lens anchor 24 is arranged on refraction of light path device seat 21; Described refraction of light path device 2 is arranged on optical path switching device support 4 mid-ways; Treat that impact test piece 3 is placed on the bottom worktable of optical path switching device support 4.
The concrete implementation step of this device is as follows:
Step 1) light path reflection unit 1, refraction of light path device 2 and optical path switching device support 4 are provided, described light path reflection unit 1 comprises light path reflection unit bearing 11, plane mirror anchor 12 and plane mirror 13; Refraction of light path device 2 comprises refraction of light path device seat 21, adjusting slider 22, convex lens 23 and convex lens anchor 24;
Step 2) take out optical path switching device support 4, be vertically placed on worktable;
Step 3) by tighting a bolt, refraction of light path device seat 21 is fixed on to the mid-way of optical path switching device support 4;
Step 4) adjusting slider 22 is inserted in the chute of refraction of light path device seat 21;
Step 5) handle of convex lens 23 anchors is inserted in the endoporus of adjusting slider, rotary handle makes convex lens 23 anchors in horizontality;
Step 6) hand-held convex lens 23, convex lens 23 are put down gently in the square box of convex lens anchor 24;
Step 7) by tighting a bolt, light path reflection unit bearing 11 is fixed on to the upper end of optical path switching device support 4;
Step 8) plane mirror 13 that the back side is scribbled to glue puts into the square shell of plane mirror anchor 12, after glue parches, carries out next step;
Step 9) handle of plane mirror 13 anchors is inserted in another endoporus of light path reflection unit bearing 11, be bolted;
Step 10) by adjusting height and rotational plane mirror anchor 12 handles of light path reflection unit bearing 11, make the central position of laser designation rayed at plane mirror 13;
Step 11) by slide control slide block 22, change its position in the chute of refraction of light path device seat 21 and rotate convex lens anchor 23 handles, make the laser designation rayed that reflects through plane mirror 13 central position at convex lens 23;
Step 12) by the height of up-down adjustment refraction of light path device seat 21, obtain the hot spot of specified size;
Further, step 5) described convex lens anchor 24 will be in horizontality; Step 10) described plane mirror 13 and incident laser pilot light be 45 ° and incident laser pilot light and will be radiated at the central position of plane mirror 13; Step 11) the described laser designation light after plane mirror 13 reflections will be radiated at the central position of convex lens 23.
The innovation of the optical path switching device of invention is herein: the test specimen surface of carrying out laser-impact processing need to cover coat, and puts into the vessel that fill water, and the laser beam that laser apparatus sends is level, is difficult to be irradiated to test specimen surface.Herein the optical path switching device of invention realized by the laser vertical of level transmitting be applied to test specimen surface, carry out laser-impact processing, thereby improve the performance such as anticorrosive, antifatigue of material.
Beneficial effect of the present invention is: not only realized laser vertical that level is launched and acted on test specimen surface, and this device finished product is low, install simple, practical.
Brief description of the drawings
Fig. 1 is the schematic diagram of optical path switching device in the present invention.
Fig. 2 is the schematic diagram of optical path switching device in the present invention.
Fig. 3 is the schematic diagram of laser-impact processing in the present invention.
In figure: 1, light path reflection unit, 2, refraction of light path device, 3, treat impact test piece, 4, optical path switching device support, 5, laser apparatus, 11, light path reflection unit bearing, 12, plane mirror anchor, 13, plane mirror, 21, refraction of light path device seat, 22, adjusting slider, 23, convex lens, 24, convex lens anchor.
Embodiment
Below in conjunction with accompanying drawing, further illustrate by way of example concrete operations flow process of the present invention, refer to Fig. 1 to Fig. 3.Laser-impact processing is repaired and born maximum principal stress is the pulsation circulation of 140MPa and the copper film gap test piece that has had 40% degree of injury, the steps include:
Step 1) light path reflection unit 1, refraction of light path device 2 and optical path switching device support 4 are provided, described light path reflection unit 1 comprises light path reflection unit bearing 11, plane mirror anchor 12 and plane mirror 13; Refraction of light path device 2 comprises refraction of light path appliance stand 21, adjusting slider 22, convex lens 23 and convex lens anchor 24;
Step 2) take out optical path switching device support 4, be vertically placed on worktable;
Step 3) by tighting a bolt, refraction of light path device seat 21 is fixed on to the mid-way of optical path switching device support 4;
Step 4) adjusting slider 22 is inserted in the chute of refraction of light path device seat 21;
Step 5) handle of convex lens anchor 24 is inserted in the endoporus of adjusting slider 22, rotary handle makes convex lens anchor 24 in horizontality, and wherein the size of convex lens anchor 24 handles and adjusting slider 22 endoporus is measure-alike, and gap is minimum;
Step 6) hand-held convex lens 23, convex lens 23 are put down gently in the square box of convex lens anchor 24;
Step 7) by tighting a bolt, light path reflection unit bearing 11 is fixed on to the upper end of optical path switching device support 4;
Step 8) plane mirror 13 that the back side is scribbled to glue puts into the square shell of plane mirror anchor 12, after glue parches, carries out next step;
Step 9) handle of plane mirror anchor 12 is inserted in another endoporus of light path reflection unit bearing 11, be bolted, wherein the endoporus of the size of plane mirror anchor 12 handles and the light path reflection unit bearing 11 that is mated is measure-alike, and gap is minimum;
Step 10) by adjusting height and rotational plane mirror anchor 12 handles of light path reflection unit bearing 11, make the central position of laser designation rayed at plane mirror 13, and plane mirror 13 is 45 ° with incident laser pilot light;
Step 11) by slide control slide block 22, change its position in the chute of refraction of light path device seat 21 and rotate convex lens anchor 24 handles, make the laser designation rayed that reflects through plane mirror 13 central position at convex lens 23;
Step 12) by the height of up-down adjustment refraction of light path device seat 21, making spot size is 45*1mm
2;
Step 13) treating impact test piece 3, the surface spray a layer thickness that has the copper film gap test piece of 40% degree of injury is that the black coating of 50-100 micron is with the specific absorption of increase material for laser light, after black coating parches, be fixed on metallic matrix, and metallic matrix is put into the culture dish that fills water, in culture dish, inject clear water, be the water layer of 1-1.5 millimeter until form a layer thickness at copper film surface, it is restraint layer, culture dish is placed on worktable, regulate the position of culture dish, make laser designation rayed after the planoconvex lens 23 refraction indentation, there at copper film gap test piece,
Step 14) be 10000J/m by the Controlling System adjustment single pulse energy of laser apparatus 5
2, pulse number is 18, carries out laser-impact processing.
The laser that laser apparatus is launched, through the reflection of optical path switching device midplane mirror and the refraction of convex lens, is irradiated on black coating through water layer, thereby produces surge pressure on breach copper film test piece surface, has greatly improved the anti-fatigue performance of material.Laser-impact is proceeded the pulsation circulation that maximum principal stress is 140MPa after processing, until test specimen fracture.Test-results shows: copper film gap test piece is circulated to 52292 just fractures, and the original life-span of known this gap test piece is 10322, and the copper film gap test piece that hence one can see that this degree of injury is 40% remnants after laser-impact is processed have improved 5.1 times fatigue lifetime.
Claims (3)
1. an optical path switching device that is applicable to laser-impact processing, is characterized in that: this device comprises light path reflection unit (1), refraction of light path device (2), treats impact test piece (3), optical path switching device support (4), laser apparatus (5); Wherein, light path reflection unit (1) comprises light path reflection unit bearing (11), plane mirror anchor (12), plane mirror (13); Refraction of light path device (2) comprises refraction of light path device seat (21), adjusting slider (22), convex lens (23), convex lens anchor (24); Particularly, laser apparatus (5) is to light path reflection unit (1) Emission Lasers, via light path reflection unit (1) reflect laggard enter light path refracting means (2), and treat impact test piece (3) and carry out laser-impact processing; Described plane mirror (13) is arranged on plane mirror anchor (12), plane mirror anchor (12) is arranged on reflection unit bearing (11), reflection unit bearing (11) is arranged on optical path switching device support (4) top, and plane mirror (13) is horizontal by 45 ° of angles, and the laser vertical direction that level can be injected reflects;
It is upper and horizontally disposed that convex lens (23) are fixed on convex lens anchor (24), it is upper that adjusting slider (22) is fixed on refraction of light path device seat (21), and convex lens anchor (24) is arranged on refraction of light path device seat (21); Described refraction of light path device (2) is arranged on optical path switching device support (4) mid-way; Treat that impact test piece (3) is placed on the bottom worktable of optical path switching device support (4).
2. a kind of optical path switching device that is applicable to laser-impact processing according to claim 1, is characterized in that: the concrete implementation step of this device is as follows:
Step 1) light path reflection unit (1), refraction of light path device (2) and optical path switching device support (4) are provided, described light path reflection unit (1) comprises light path reflection unit bearing (11), plane mirror anchor (12) and plane mirror (13); Refraction of light path device (2) comprises refraction of light path device seat (21), adjusting slider (22), convex lens (23) and convex lens anchor (24);
Step 2) take out optical path switching device support (4), be vertically placed on worktable;
Step 3) by tighting a bolt, refraction of light path device seat (21) is fixed on to the mid-way of optical path switching device support (4);
Step 4) adjusting slider (22) is inserted in the chute of refraction of light path device seat (21);
Step 5) handle of convex lens (23) anchor is inserted in the endoporus of adjusting slider, rotary handle makes convex lens (23) anchor in horizontality;
Step 6) hand-held convex lens (23), convex lens (23) are put down gently in the square box of convex lens anchor (24);
Step 7) by tighting a bolt, light path reflection unit bearing (11) is fixed on to the upper end of optical path switching device support (4);
Step 8) plane mirror (13) that the back side is scribbled to glue puts into the square shell of plane mirror anchor (12), after glue parches, carries out next step;
Step 9) handle of plane mirror (13) anchor is inserted in another endoporus of light path reflection unit bearing (11), be bolted;
Step 10) by adjusting height and rotational plane mirror anchor (12) handle of light path reflection unit bearing (11), make the central position of laser designation rayed in plane mirror (13);
Step 11) by slide control slide block (22), change its position in the chute of refraction of light path device seat (21) and rotate convex lens anchors (23) handle, making the central position in convex lens (23) through the laser designation rayed of plane mirror (13) reflection;
Step 12) by the height of up-down adjustment refraction of light path device seat (21), obtain the hot spot of specified size.
3. a kind of optical path switching device that is applicable to laser-impact processing according to claim 1, is characterized in that: step 5) described convex lens anchor (24) will be in horizontality;
Step 10) described plane mirror (13) and incident laser pilot light be 45 ° and incident laser pilot light and will be radiated at the central position of plane mirror (13);
Step 11) the described laser designation light after plane mirror (13) reflection will be radiated at the central position of convex lens (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410286001.7A CN104073622A (en) | 2014-06-24 | 2014-06-24 | Light path converting device applicable to laser impact treatment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410286001.7A CN104073622A (en) | 2014-06-24 | 2014-06-24 | Light path converting device applicable to laser impact treatment |
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| CN201410286001.7A Pending CN104073622A (en) | 2014-06-24 | 2014-06-24 | Light path converting device applicable to laser impact treatment |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103074469A (en) * | 2012-10-30 | 2013-05-01 | 北京工业大学 | Laser shock method for healing fatigue damage of polycrystal rolling copper film |
| CN103302399A (en) * | 2013-06-03 | 2013-09-18 | 江苏大学 | Micro-leveling device based on high-energy pulse laser power effect and method thereof |
| CN103487898A (en) * | 2012-06-13 | 2014-01-01 | 鸿富锦精密工业（深圳）有限公司 | Optical path switching module and optical fiber coupling connector |
-
2014
- 2014-06-24 CN CN201410286001.7A patent/CN104073622A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103487898A (en) * | 2012-06-13 | 2014-01-01 | 鸿富锦精密工业（深圳）有限公司 | Optical path switching module and optical fiber coupling connector |
| CN103074469A (en) * | 2012-10-30 | 2013-05-01 | 北京工业大学 | Laser shock method for healing fatigue damage of polycrystal rolling copper film |
| CN103302399A (en) * | 2013-06-03 | 2013-09-18 | 江苏大学 | Micro-leveling device based on high-energy pulse laser power effect and method thereof |
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Application publication date: 20141001 |