CN101109032A - Technique of laser hardening ossifying process of vehicle mold - Google Patents
Technique of laser hardening ossifying process of vehicle mold Download PDFInfo
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- CN101109032A CN101109032A CNA2007100124894A CN200710012489A CN101109032A CN 101109032 A CN101109032 A CN 101109032A CN A2007100124894 A CNA2007100124894 A CN A2007100124894A CN 200710012489 A CN200710012489 A CN 200710012489A CN 101109032 A CN101109032 A CN 101109032A
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Abstract
The invention relates to a vehicle mould quenching hardening process, which comprises the following steps: firstly detergent is used to remove oil and dust on the workpiece surface; secondly the Sio2 absorption coating material is sprayed uniformly on the vehicle mould surface in a pre-thickness of 0.02 mm to 0.05 mm with a brush; thirdly the Sio2 coating is naturally dried; fourthly a high power CO2 laser is applied to quickly scan the sprayed mould surface to achieve rapid surface heating and cooling. The laser power P is from 2,000W to 5,000W and the scan speed V is from 200 mm per min to 800 mm per min. The invention controls the surface uniform easily, improves the surface finish and dimensional accuracy of the stamping parts, greatly reduces the grinding time so as to improve the work efficiency and reduce the cost. In addition, the applied NC programming system can quench harden complex shaped moulds. The system is also fit for newly produced moulds without or with surface quenching process.
Description
Technical field
The present invention relates to a kind of vehicle mould laser quenching hardened technology, belong to vehicle mould hardening process field.
Background technology
Vehicle mould, especially large-scale covering mould are the key toolings of auto-producing, because its scantlings of the structure is big, die face is complex-shaped, and dimensional precision and surface quality require high, make die manufacturing cycle long, the cost height.And car panel die in the course of the work, bear intensive friction, radial stress and stress under compression, and often because size wearing and tearing and surface produce groove and scrap, so cladding member mold should have higher hardness and wear resistance.Because the vehicle mould size is bigger and complex-shaped, adopt the cast alloy iron casting to form usually, generally all need follow-up surface treatment.Phenomenons such as the not enough or size deviation of the Abdeckteil surface accuracy that stamps out often appear in traditional some processing means such as flame quenchings in the production use.The condition of surface of car panel die directly influences quality product and die life.It is most important for improving die life how to obtain high-quality car panel die material.
The appearance of high power laser and laser processing technology are extensive day by day, ripe in industrial application, a kind of new technological approaches is provided for the reinforcement of die surface, and be proved to be to reduce production costs, improved the effective way of service life of equipment and reusability.Laser quenching is the irradiation by the laser beam with enough power densities, the rapid heating metallic surface reaches more than the transformation temperature it, metallic substance inside then keeps cold conditions (after stopping heating, because thermal conduction is sharply cooled off the top layer metal, thereby to reach the purpose of quenching.
Adopt laser quenching not only can avoid problems such as above-mentioned surface accuracy and size deviation, and can the workpiece local surfaces be strengthened, its hardened layer can accurately be controlled, and its technological process easily realizes the production automation of computer control.Along with the development of Domestic Automotive Industry department, mould industry is had higher requirement, particularly more urgent to the requirement that how to improve Mould Machining quality and work-ing life, thus laser transformation hardening is applied in mould industry.
Summary of the invention
The purpose of this invention is to provide the laser quenching hardening process that a kind of vehicle mould is used.
The technical scheme that adopts is:
A kind of technology of vehicle mould laser quenching hardening treatment is characterized in that comprising following technological process:
(1) removes the processing work surface and oil contaminant with clean-out system.
(2) with brush with SiO
2Extinction coating is coated in the vehicle mould surface equably, and precoating thickness is 0.02～0.05mm.
(3) natural air drying SiO
2Coating.
(4) select high power CO for use
2The laser apparatus rapid scanning scribbles the vehicle mould surface of light-absorbing coating, makes the vehicle mould surface realize rapid heating and cooling, laser power P=2000～5000W, scan velocity V=200～800mm/min.
The present invention adopts laser-quenching technique, be exceedingly fast owing to LASER HEATING speed in the laser quenching process, cause austenite process (laser transformation district) to be in the temperature province of a higher broad, form very tiny and extremely uneven austenite, in self quick process of cooling, be transformed into superfine little martensite.And remain in the molten carbide of small and dispersed in the austenite, be distributed on the tiny martensite in the tissue after quenching, the martensite hardness that this martensitic hardness ratio is general is high by about 20%, make the metallic surface have very high hardness and good wear resistance, thereby significantly improve die life.Vehicle mould microhardness after flame quenching is HV
0.3600～700, and after laser quenching, reach HV
0.3More than 1000.Laser quenching is strengthened mould top layer homogeneity and is easy to control, can improve stamping parts surface smoothness and dimensional precision, reduces reconditioning time and number of times greatly, improves operating rate, reduces cost.Adopt the digital control system programming also can be to the complicated shape mould processing treatment of quenching automatically.And for the mould of the not quench treatment of newborn output or carried out the mould that hard surfacing handles and all be suitable for.
Embodiment
Embodiment one
At first vehicle mould is removed the processing work surface and oil contaminant with clean-out systems such as gasoline, so that evenly spray light-absorbing coating.Again with brush with SiO
2Extinction coating is coated in the vehicle mould surface equably, to improve the metallic surface to CO
2The specific absorption of laser, precoating thickness are 0.02mm.Then with SiO
2The coating natural air drying.Open the SIEMENS numerically-controlled machine, utilize DL-HL-5000 type CO
2The laser apparatus rapid scanning scribbles the vehicle mould surface of light-absorbing coating, makes the vehicle mould surface realize rapid heating and cooling, laser power P=2500W, scan velocity V=300mm/min.
Embodiment two
At first vehicle mould is removed the processing work surface and oil contaminant with clean-out systems such as gasoline, so that evenly spray light-absorbing coating.Again with brush with SiO
2Extinction coating is coated in the vehicle mould surface equably, to improve the metallic surface to CO
2The specific absorption of laser, precoating thickness are 0.03mm.Then with SiO
2The coating natural air drying.Open the SIEMENS numerically-controlled machine, utilize DL-HL-5000 type CO
2The laser apparatus rapid scanning scribbles the vehicle mould surface of light-absorbing coating, makes the vehicle mould surface realize rapid heating and cooling, laser power P=3000W, scan velocity V=500mm/min.
Embodiment three
At first vehicle mould is removed the processing work surface and oil contaminant with clean-out systems such as gasoline, so that evenly spray light-absorbing coating.Again with brush with SiO
2Extinction coating is coated in the vehicle mould surface equably, to improve the metallic surface to CO
2The specific absorption of laser, precoating thickness are 0.05mm.Then with SiO
2The coating natural air drying.Open the SIEMENS numerically-controlled machine, utilize DL-HL-5000 type CO
2The laser apparatus rapid scanning scribbles the vehicle mould surface of light-absorbing coating, makes the vehicle mould surface realize rapid heating and cooling, laser power P=3500W, scan velocity V=700mm/min.
Claims (1)
1. the technology of a vehicle mould laser quenching hardening treatment is characterized in that comprising following technological process:
A, remove the processing work surface and oil contaminant with clean-out system;
B, with brush with SiO
2Extinction coating is coated in the vehicle mould surface equably, and precoating thickness is 0.02～0.05mm;
C, natural air drying SiO
2Coating;
D, select high power CO for use
2The laser apparatus rapid scanning scribbles the vehicle mould surface of light-absorbing coating, makes the vehicle mould surface realize rapid heating and cooling, laser power P=2000～5000W, scan velocity V=200～800mm/min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100124894A CN101109032A (en) | 2007-08-17 | 2007-08-17 | Technique of laser hardening ossifying process of vehicle mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100124894A CN101109032A (en) | 2007-08-17 | 2007-08-17 | Technique of laser hardening ossifying process of vehicle mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101109032A true CN101109032A (en) | 2008-01-23 |
Family
ID=39041290
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007100124894A Pending CN101109032A (en) | 2007-08-17 | 2007-08-17 | Technique of laser hardening ossifying process of vehicle mold |
Country Status (1)
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Cited By (25)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101845539A (en) * | 2010-05-24 | 2010-09-29 | 浙江工业大学 | Method for strengthening edges of tool and die based on laser transformation hardening |
| CN102417952A (en) * | 2011-11-18 | 2012-04-18 | 江苏大学 | Laser thermomechanical effect strengthening method and laser thermomechanical effect strengthening system for automotive LED (light-emitting diode) headlight molds |
| CN102560015A (en) * | 2012-03-07 | 2012-07-11 | 中国船舶重工集团公司第十二研究所 | Method for treating mold surface by using laser hardening |
| CN102676751A (en) * | 2012-05-27 | 2012-09-19 | 丹阳市宏图机械制造有限公司 | Laser strengthening process of sliding plate |
| CN102747198A (en) * | 2012-07-31 | 2012-10-24 | 重庆创隆实业有限公司 | Surface hardening process for metal stamping die |
| CN102020880B (en) * | 2009-09-23 | 2012-10-24 | 上海电气电站设备有限公司 | Light absorption coating for laser heat treatment of surface of metal material and coating method thereof |
| CN103352105A (en) * | 2012-05-27 | 2013-10-16 | 丹阳宏图激光科技有限公司 | Laser strengthening process for slide plate |
| CN103468886A (en) * | 2013-06-04 | 2013-12-25 | 武汉点金激光科技有限公司 | Concrete pump truck conveying cylinder laser quenching hardening treatment technology |
| CN103555900A (en) * | 2013-10-30 | 2014-02-05 | 甘肃农业大学 | Surface thermal treatment method for die set of U-shaped plate of excavator bucket rod |
| CN103602800A (en) * | 2012-05-27 | 2014-02-26 | 蒋超 | Laser strengthening process of sliding plate |
| CN103602788A (en) * | 2012-05-27 | 2014-02-26 | 蒋超 | Sliding plate laser strengthening process for laser quenching on sliding plate surface |
| CN103602789A (en) * | 2012-05-27 | 2014-02-26 | 蒋超 | Laser strengthening process for effective control of quenching deformation of sliding plate |
| CN103602790A (en) * | 2012-05-27 | 2014-02-26 | 蒋超 | Laser strengthening process of sliding plate |
| CN101767156B (en) * | 2008-12-31 | 2014-07-16 | 中国第一汽车股份有限公司 | Numerical control machining method after quenching surface of drawing die |
| CN104975144A (en) * | 2015-06-25 | 2015-10-14 | 江苏斯普瑞科技有限公司 | Mold laser strengthening technology |
| CN105506232A (en) * | 2015-12-10 | 2016-04-20 | 武汉华工激光工程有限责任公司 | Laser compound treatment process capable of adjusting hardness of steel |
| CN106119468A (en) * | 2016-08-19 | 2016-11-16 | 上海诺信汽车零部件有限公司 | Vacuum automobile pump rotor laser-quenching method |
| CN106609315A (en) * | 2015-10-21 | 2017-05-03 | 上海炬辰激光技术有限公司 | Laser hardening treatment method for surface of bending mold |
| CN106967868A (en) * | 2017-05-24 | 2017-07-21 | 昆山鑫昌泰模具科技有限公司 | The laser-quenching technique of Press Tools for Automobiles characteristic curve |
| CN106987685A (en) * | 2017-02-06 | 2017-07-28 | 上海瑞挚汽车模具有限公司 | A kind of Technology for Heating Processing for Cr12MoV steel casting mould types face |
| CN108130401A (en) * | 2016-12-01 | 2018-06-08 | 上海新安汽车隔音毡有限公司 | A kind of production method of ultraprecise long-service die |
| CN110358908A (en) * | 2019-07-31 | 2019-10-22 | 重庆杰腆科技有限公司 | A kind of extrusion die working portion laser processing method |
| CN110899522A (en) * | 2019-12-19 | 2020-03-24 | 佛山市成阳正大模具五金塑料有限公司 | Process method for improving mold closing efficiency of automobile mold |
| CN111438212A (en) * | 2020-04-03 | 2020-07-24 | 广西南南铝加工有限公司 | Preparation method of rapid extrusion hard aluminum alloy section |
| CN113862429A (en) * | 2021-09-28 | 2021-12-31 | 燕山大学 | Efficient pre-hardening method for steel and steel workpiece |
-
2007
- 2007-08-17 CN CNA2007100124894A patent/CN101109032A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101767156B (en) * | 2008-12-31 | 2014-07-16 | 中国第一汽车股份有限公司 | Numerical control machining method after quenching surface of drawing die |
| CN102020880B (en) * | 2009-09-23 | 2012-10-24 | 上海电气电站设备有限公司 | Light absorption coating for laser heat treatment of surface of metal material and coating method thereof |
| CN101845539A (en) * | 2010-05-24 | 2010-09-29 | 浙江工业大学 | Method for strengthening edges of tool and die based on laser transformation hardening |
| CN101845539B (en) * | 2010-05-24 | 2013-06-19 | 浙江工业大学 | Method for strengthening edges of tool and die based on laser transformation hardening |
| CN102417952A (en) * | 2011-11-18 | 2012-04-18 | 江苏大学 | Laser thermomechanical effect strengthening method and laser thermomechanical effect strengthening system for automotive LED (light-emitting diode) headlight molds |
| CN102417952B (en) * | 2011-11-18 | 2013-07-17 | 江苏大学 | Laser thermomechanical effect strengthening method and laser thermomechanical effect strengthening system for automotive LED (light-emitting diode) headlight molds |
| CN102560015B (en) * | 2012-03-07 | 2013-10-09 | 中国船舶重工集团公司第十二研究所 | Method for treating mold surface by using laser hardening |
| CN102560015A (en) * | 2012-03-07 | 2012-07-11 | 中国船舶重工集团公司第十二研究所 | Method for treating mold surface by using laser hardening |
| CN103352105A (en) * | 2012-05-27 | 2013-10-16 | 丹阳宏图激光科技有限公司 | Laser strengthening process for slide plate |
| CN103602789B (en) * | 2012-05-27 | 2015-01-07 | 蒋超 | Laser strengthening process for effective control of quenching deformation of sliding plate |
| CN102676751B (en) * | 2012-05-27 | 2013-12-18 | 丹阳宏图激光科技有限公司 | Laser strengthening process of sliding plate |
| CN103602800B (en) * | 2012-05-27 | 2015-01-07 | 蒋超 | Laser strengthening process of sliding plate |
| CN103602788B (en) * | 2012-05-27 | 2014-12-31 | 国网浙江宁波市鄞州区供电公司 | Sliding plate laser strengthening process for laser quenching on sliding plate surface |
| CN103602800A (en) * | 2012-05-27 | 2014-02-26 | 蒋超 | Laser strengthening process of sliding plate |
| CN103602788A (en) * | 2012-05-27 | 2014-02-26 | 蒋超 | Sliding plate laser strengthening process for laser quenching on sliding plate surface |
| CN103602789A (en) * | 2012-05-27 | 2014-02-26 | 蒋超 | Laser strengthening process for effective control of quenching deformation of sliding plate |
| CN103602790A (en) * | 2012-05-27 | 2014-02-26 | 蒋超 | Laser strengthening process of sliding plate |
| CN103352105B (en) * | 2012-05-27 | 2014-07-02 | 丹阳宏图激光科技有限公司 | Laser strengthening process for slide plate |
| CN102676751A (en) * | 2012-05-27 | 2012-09-19 | 丹阳市宏图机械制造有限公司 | Laser strengthening process of sliding plate |
| CN103602790B (en) * | 2012-05-27 | 2014-12-31 | 国网浙江宁波市鄞州区供电公司 | Laser strengthening process of sliding plate |
| CN102747198B (en) * | 2012-07-31 | 2014-11-05 | 重庆创隆实业有限公司 | Surface hardening process for metal stamping die |
| CN102747198A (en) * | 2012-07-31 | 2012-10-24 | 重庆创隆实业有限公司 | Surface hardening process for metal stamping die |
| CN103468886A (en) * | 2013-06-04 | 2013-12-25 | 武汉点金激光科技有限公司 | Concrete pump truck conveying cylinder laser quenching hardening treatment technology |
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| CN103555900B (en) * | 2013-10-30 | 2015-11-25 | 甘肃农业大学 | A kind of excavator boom U-shaped plate die moulded mould surface heat-treatment process |
| CN104975144A (en) * | 2015-06-25 | 2015-10-14 | 江苏斯普瑞科技有限公司 | Mold laser strengthening technology |
| CN106609315A (en) * | 2015-10-21 | 2017-05-03 | 上海炬辰激光技术有限公司 | Laser hardening treatment method for surface of bending mold |
| CN105506232A (en) * | 2015-12-10 | 2016-04-20 | 武汉华工激光工程有限责任公司 | Laser compound treatment process capable of adjusting hardness of steel |
| CN105506232B (en) * | 2015-12-10 | 2018-07-31 | 武汉华工激光工程有限责任公司 | A kind of laser multiple processing technique of adjustment steel hardness |
| CN106119468A (en) * | 2016-08-19 | 2016-11-16 | 上海诺信汽车零部件有限公司 | Vacuum automobile pump rotor laser-quenching method |
| CN108130401A (en) * | 2016-12-01 | 2018-06-08 | 上海新安汽车隔音毡有限公司 | A kind of production method of ultraprecise long-service die |
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| CN106987685B (en) * | 2017-02-06 | 2018-10-30 | 上海瑞挚汽车模具有限公司 | A kind of heat treatment process for Cr12MoV steel casting mould types face |
| CN106967868A (en) * | 2017-05-24 | 2017-07-21 | 昆山鑫昌泰模具科技有限公司 | The laser-quenching technique of Press Tools for Automobiles characteristic curve |
| CN110358908A (en) * | 2019-07-31 | 2019-10-22 | 重庆杰腆科技有限公司 | A kind of extrusion die working portion laser processing method |
| CN110899522A (en) * | 2019-12-19 | 2020-03-24 | 佛山市成阳正大模具五金塑料有限公司 | Process method for improving mold closing efficiency of automobile mold |
| CN111438212A (en) * | 2020-04-03 | 2020-07-24 | 广西南南铝加工有限公司 | Preparation method of rapid extrusion hard aluminum alloy section |
| CN113862429A (en) * | 2021-09-28 | 2021-12-31 | 燕山大学 | Efficient pre-hardening method for steel and steel workpiece |
| CN113862429B (en) * | 2021-09-28 | 2023-03-03 | 燕山大学 | Efficient pre-hardening method for steel and steel workpiece |
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