CN102505065A - Water/light coaxial device used for laser impact processing - Google Patents
Water/light coaxial device used for laser impact processing Download PDFInfo
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- CN102505065A CN102505065A CN201110377120XA CN201110377120A CN102505065A CN 102505065 A CN102505065 A CN 102505065A CN 201110377120X A CN201110377120X A CN 201110377120XA CN 201110377120 A CN201110377120 A CN 201110377120A CN 102505065 A CN102505065 A CN 102505065A
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Abstract
The invention discloses a water/light coaxial device used for laser impact processing, which is characterized in that a conical nozzle is sleeved outside an optical lens from which frequency-doubled YAG laser vertically passes through; a deionized water input hole is processed on the side face of the conical nozzle; the lower end of the conical nozzle is open and keeps coaxial with the optical lens so as to allow a frequency-doubled YAG laser beam and a stable deionized water column to pass through; the optical lens is a focus lens; and the focal length of the optical lens is 1.2-2 times of the length of the nozzle. The water/light coaxial nozzle disclosed by the invention uses the frequency-doubled YAG laser to directly pass through the water nozzle to realize laser impact processing. The device disclosed by the invention is of strong applicability to workpieces with narrow rooms or unsmooth surfaces, can realize high-frequency laser impact processing and has good reference value to laser impact processing. Therefore, the water/light coaxial device has wide applicability.
Description
Technical field
The present invention is a kind of ballistic water of laser processing/light coaxial device that is used for, and belongs to laser processing technology.
Background technology
Laser-impact is handled in the course of processing, and laser need arrive absorption layer through the water layer as restraint layer, and laser energy is absorbed by the absorption layer and produces the HTHP plasma body, and then produces shockwave.During the continuous laser shock treatment, can the planarization of restraint layer influences laser-impact handles and to implement or continuous.Fig. 1 is conventional laser-impact tupe; Usually adopt laser head and the isolating method of sprinkler head; Laser and sprinkler head need the above distance of 40mm, and sprinkler head water spray back on workpiece forms smooth cascade through mobilization and handles restraint layer as laser-impact, therefore needs the local smooth of flowing water; So it is smooth that the lasing position needs, so that make current form smooth restraint layer at laser position.The narrow and small or surface irregularity of regional space when needs are handled in the time of can't adopting smooth current as restraint layer, is difficult to carry out laser impact intensified.In addition; Even even curface; When adopting smooth current as restraint layer, because the water smoke that the sputter of water forms can stop the transmission of laser, so the frequency that laser-impact is handled can not be very high; Generally can not be greater than 2Hz, the coupling of current and laser becomes the important factor in order of laser impact intensified scope of restriction and efficient.This method is difficult to implement during the narrow and small or surface irregularity of the regional space of handling when needs.The method that adopts double-frequency laser underwater laser shock treatment is also arranged, but this method adopts whole work-piece to duck in drink, and carries out the supply of deionized water from the side, this method has significant limitation equally.
Summary of the invention
The present invention designs to the deficiency that exists in the above-mentioned prior art just a kind of ballistic water of laser processing/light coaxial device that is used for is provided, and its objective is and utilizes frequency multiplication YAG laser directly to realize small space or high-frequency laser-impact treatment process through water spouting nozzle.
The objective of the invention is to realize through following technical measures:
This kind is used for the ballistic water of laser processing/light coaxial device; It is characterized in that: conical nozzle of suit outside the lens that frequency multiplication YAG laser vertical is passed through; At deionized water input hole of the side of conical nozzle processing; Spacious hole, the lower end of conical nozzle and lens keep that coaxial lens are condensing lens to pass through frequency multiplication YAG laser beam and stable de-ionized water column, and the focal length of lens is 1.2～2 times of length of nozzle.
Technical scheme of the present invention is to utilize a nozzle that is installed on the lens; Introduce deionized water from the side of nozzle; Form the mouth outflow of water column from nozzle; The speed of current will guarantee the stable water column of interruption-forming, is equivalent to laser and deionized water water from the coaxial output of nozzle, realizes that easily the laser-impact of the workpiece of or surface irregularity narrow and small to the space is handled.Current adopt deionized water can reduce the absorption to laser.
Laser adopts frequency multiplication YAG laser vertical scioptics to arrive laser-impact and handles nozzle; Lens can adopt condensing lens; The focal length of condensing lens in water is greater than the length of nozzle; Laser forms circular light spot or the square focus spot of φ below 5 in the exit, burnt position is being gone in laser-impact work of treatment position.
Description of drawings
Fig. 1 is the device synoptic diagram of existing laser-impact method
Fig. 2 is apparatus of the present invention structure of nozzle synoptic diagram
Fig. 3 is the synoptic diagram of the laser-impact method of apparatus of the present invention realization
Embodiment
Below will combine accompanying drawing and embodiment that technical scheme of the present invention is done to detail further:
Shown in accompanying drawing 2～3; It is conical nozzle 2 of suit outside the lens 1 that frequency multiplication YAG laser vertical is passed through that this kind is used for the ballistic water of laser processing/light coaxial device; Remove dried up input hole 3 one of the side of conical nozzle 2 processing, spacious hole 4, the lower end of conical nozzle 2 keeps coaxial to pass through frequency multiplication YAG laser beam 5 and stable de-ionized water column 6 with lens 1; Lens 1 are condensing lens, and lens 1 focal length is 1.2～2 times of length of nozzle.
A concrete processing instance is the green glow that the YAG laser freuqency doubling becomes 0.53 mum wavelength; 2 the axis input from lens 1 along nozzle; The focal length of lens 1 is lens and the sealing of 120～200mm, and when airborne lens were used under water, it is big to original about three times that focal length can become; Spacious 4 places, hole form spacious hole 4 outputs from the lower end of φ 6 of the light beam of φ below 4 to laser in nozzle 2 lower ends; Deionized water is imported through the dried up input hole 3 that goes of the side M8 of conical nozzle 2, and spacious hole 4 outputs from the lower end, and formation water, the co-axial laser-impact of light are handled processing unit (plant).
Compared with prior art, apparatus of the present invention workpiece suitability narrow and small to the space or surface irregularity is strong, and can realize high-frequency laser-impact treatment process, and laser is had good reference value towards treatment process etc., and suitability is wide.
Claims (1)
1. one kind is used for the ballistic water of laser processing/light coaxial device; It is characterized in that: a conical nozzle of suit (2) outside the lens (1) that frequency multiplication YAG laser vertical is passed through; At the side of conical nozzle (a 2) processing deionized water input hole (3), spacious hole (4), the lower end of conical nozzle (2) keeps coaxial to pass through frequency multiplication YAG laser beam (5) and stable de-ionized water column (6) with lens (1); Lens (1) are condensing lens, and lens (1) focal length is 1.2～2 times of length of nozzle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110377120.XA CN102505065B (en) | 2011-11-22 | 2011-11-22 | Water/light coaxial device used for laser impact processing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110377120.XA CN102505065B (en) | 2011-11-22 | 2011-11-22 | Water/light coaxial device used for laser impact processing |
Publications (2)
| Publication Number | Publication Date |
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| CN102505065A true CN102505065A (en) | 2012-06-20 |
| CN102505065B CN102505065B (en) | 2014-09-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110377120.XA Active CN102505065B (en) | 2011-11-22 | 2011-11-22 | Water/light coaxial device used for laser impact processing |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103740894A (en) * | 2013-12-31 | 2014-04-23 | 唐山轨道客车有限责任公司 | Laser shock strengthening device and water spray pipe thereof |
| CN108262563A (en) * | 2016-12-30 | 2018-07-10 | 宁波大艾激光科技有限公司 | A kind of laser impact intensified processing unit of trailing type and method |
| CN110257623A (en) * | 2019-07-09 | 2019-09-20 | 中国航发北京航空材料研究院 | A kind of laser shock peening method and its device of bearing outer ring |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101823183A (en) * | 2009-03-04 | 2010-09-08 | 鸿富锦精密工业（深圳）有限公司 | Water-conducted laser device |
| JP2010247213A (en) * | 2009-04-20 | 2010-11-04 | Jfe Steel Corp | Apparatus and method for performing laser peening, and metallic material product |
| CN201864747U (en) * | 2010-11-16 | 2011-06-15 | 沈阳新松机器人自动化股份有限公司 | Light and water coaxial laser impact enhancing head |
-
2011
- 2011-11-22 CN CN201110377120.XA patent/CN102505065B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101823183A (en) * | 2009-03-04 | 2010-09-08 | 鸿富锦精密工业（深圳）有限公司 | Water-conducted laser device |
| JP2010247213A (en) * | 2009-04-20 | 2010-11-04 | Jfe Steel Corp | Apparatus and method for performing laser peening, and metallic material product |
| CN201864747U (en) * | 2010-11-16 | 2011-06-15 | 沈阳新松机器人自动化股份有限公司 | Light and water coaxial laser impact enhancing head |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103740894A (en) * | 2013-12-31 | 2014-04-23 | 唐山轨道客车有限责任公司 | Laser shock strengthening device and water spray pipe thereof |
| CN108262563A (en) * | 2016-12-30 | 2018-07-10 | 宁波大艾激光科技有限公司 | A kind of laser impact intensified processing unit of trailing type and method |
| CN108262563B (en) * | 2016-12-30 | 2023-10-24 | 宁波大艾激光科技有限公司 | Follow-up laser shock peening device and method |
| CN110257623A (en) * | 2019-07-09 | 2019-09-20 | 中国航发北京航空材料研究院 | A kind of laser shock peening method and its device of bearing outer ring |
| CN110257623B (en) * | 2019-07-09 | 2021-04-20 | 中国航发北京航空材料研究院 | Laser shock peening method and device for bearing outer ring |
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| Publication number | Publication date |
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| CN102505065B (en) | 2014-09-17 |
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