CN101109032A - Technique of laser hardening ossifying process of vehicle mold - Google Patents

Technique of laser hardening ossifying process of vehicle mold Download PDF

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Publication number
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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CN
China
Prior art keywords
laser
mould
vehicle mould
coating
vehicle
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Application number
CNA2007100124894A
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Chinese (zh)
Inventor
陶兴启
于恩洪
黄旭东
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沈阳大陆激光成套设备有限公司
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Filing date
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Application filed by 沈阳大陆激光成套设备有限公司 filed Critical 沈阳大陆激光成套设备有限公司
Priority to CNA2007100124894A priority Critical patent/CN101109032A/en
Publication of CN101109032A publication Critical patent/CN101109032A/en

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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

A kind of technology of vehicle mould laser quenching hardening treatment
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.
CNA2007100124894A 2007-08-17 2007-08-17 Technique of laser hardening ossifying process of vehicle mold CN101109032A (en)

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

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Family Applications (1)

Application Number Title Priority Date Filing Date
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Country Status (1)

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Cited By (23)

* Cited by examiner, † Cited by third party
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
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
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
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
CN103602789A (en) * 2012-05-27 2014-02-26 蒋超 Laser strengthening process for effective control of quenching deformation of sliding plate
CN103602800A (en) * 2012-05-27 2014-02-26 蒋超 Laser strengthening process of sliding plate
CN103602790A (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
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

Cited By (36)

* Cited by examiner, † Cited by third party
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
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
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
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
CN103602789B (en) * 2012-05-27 2015-01-07 蒋超 Laser strengthening process for effective control of quenching deformation of sliding plate
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
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
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
CN103602789A (en) * 2012-05-27 2014-02-26 蒋超 Laser strengthening process for effective control of quenching deformation of sliding plate
CN103602800A (en) * 2012-05-27 2014-02-26 蒋超 Laser strengthening process of sliding plate
CN103602790A (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
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
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
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
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
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
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
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
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

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