CN103551438A - High-strength plate laser heating processing method for thermal forming - Google Patents
High-strength plate laser heating processing method for thermal forming Download PDFInfo
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- CN103551438A CN103551438A CN201310474309.XA CN201310474309A CN103551438A CN 103551438 A CN103551438 A CN 103551438A CN 201310474309 A CN201310474309 A CN 201310474309A CN 103551438 A CN103551438 A CN 103551438A
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Abstract
The invention discloses a high-strength plate laser heating processing method for thermal forming. The method comprises placing a preprocessed high-strength plate onto support rods of a forming die, outputting laser beams to scan the surface of the plate to achieve heating through a laser source, and adjusting the technical parameters of the plate and controlling the integral temperature and the surface compact product even distribution of the plate through online infrared temperature measurement and three-dimensional coordinate measurement. The high-strength plate laser heating processing method for thermal forming has the advantages of being simple in operation process, high in efficiency and capable of shortening the technical process of thermal forming, and proved by actual testing, is high in heating efficiency and good in antioxidant protection effects.
Description
Technical field
The present invention relates to high-strength panel hot forming technical field, be specifically related to a kind of for hot formed high-strength panel LASER HEATING processing method.
Background technology
Hot forming is one and is specifically designed to the technology of manufacturing high-strength panel part, the part making by this method, there is superhigh intensity, good dimensional accuracy, can improve the collision safety performance of parts, alleviate global facility weight, energy-saving and emission-reduction, are widely used in the fields such as automobile making, Aero-Space in recent years.
In heat forming technology, high-strength panel need to be heated to suitable temperature, such as steel need to be heated to austenitizing temperature, then in diel, carry out stamping and quenching fast simultaneously, make formation of parts obtain equally distributed high-performance microstructure, or titanium alloy plate need to heat yield stress is reduced, meet press tonnage requirement.One of key issue of high-strength panel heat forming technology is that sheet material is heated rapidly to suitable temperature, and prior art is all to transfer in diel after adopting heating furnace heating mostly, and the rate of heat addition is low, complex operation, and apparatus for production line is huge; Two of key issue is oxidant protection under high temperatures of sheet material; sheet material under high temperature contacts with air, and surperficial severe oxidation generates loose scale; even heat in the heating furnace with protectiveness atmosphere; sheet material is transferred in the process of mould, is also difficult to avoid oxidation, and oxide skin easily comes off and adheres to die surface in punching course; may damage die surface and remove trouble; impact is produced continuously, also can affect surface quality and the dimensional accuracy of part, and subsequent treatment has increased production cost.
At present, the Fast Heating for high-strength panel in heat forming technology and high-temperature oxydation problem, still do not have effective solution, only relates to the technical solution of Single-issue.Fast Heating mainly adopts heating furnace; require the heating rate of heating furnace to reach 4 ℃/s; in stove, need logical protective gas to avoid sheet material oxidized in heating process; and need to configure entrance and exit roller-way carries out loading and unloading, manipulator and transports sheet material after heating to mould; cause furnace apparatus bulky, cause drop stamping technological process loaded down with trivial details.Oxidant protection under high temperature is mainly armor coated at plate surface, by the oxygen in coating consumed cabin air or intercept the mode that sheet material contacts with air, and such as aluminizing at steel surface, zinc or aluminium silicon, aluminium spelter coating, or employing high-temp antioxidizing paint.Existing oxidant protection under high temperature technology has not only increased the expense of sheet material being carried out to anti-oxidation processing, and after being shaped, is to guarantee surface quality of workpieces, coating need be removed and process, makes heat forming technology more complicated.
Summary of the invention
The present invention is directed to Fast Heating and high-temperature oxydation problem that existing high-strength panel hot forming technology exists, provide a kind of for hot formed high-strength panel LASER HEATING processing method, be Fast Heating and surface-treated integral method, have that operating procedure is simple, efficiency is high, the feature of shortening heat forming technology flow process.
Of the present invention for hot formed high-strength panel LASER HEATING processing method, pretreatment high-strength panel is positioned in shaping dies on support bar, lasing light emitter outgoing laser beam scanning plate surface is implemented heating, and the technical parameter of adjusting in real time lasing light emitter by online infrared measurement of temperature and shape measure is uniformly distributed to control sheet material bulk temperature and surface compact product layer.
Lasing light emitter described in the present invention can be continuous or pulse, can adopt single or multiple collaborative.
Laser beam described in the present invention can be even type or Gaussian distribution type isotype, can be the light spot shapes such as circle, rectangle or annular.
Laser beam flying plate surface described in the present invention can be that a time or multi-pass repeat, and scanning process can be continuously or be interrupted and carry out.
High-strength panel described in the present invention can be simple metal, alloy or metal-base composites.Can be the material that plasticity is good, can be also the material of fragility, difficult distortion.
Pretreatment high-strength panel described in the present invention can be plate surface brushing one deck black light-absorbing material, as pitch-dark, carbon black etc., the heat absorption coefficients of increase to laser beam, also can be the laid layer of metal of plate surface or nonmetallic one or more mixed-powders, LASER HEATING effect lower berth stomach powder and plate surface matrix material form the even cladding layer that one deck adhesion is strong.
The technical parameter of the adjustment lasing light emitter described in the present invention is mainly power, rate travel, spot diameter and the scanning pattern of laser beam.
The technical advantage of the inventive method is embodied in:
(1) operating procedure is simple, adopts laser emission mode of heating, and heating process is easy to control, and can need to plan heating region according to technique.
(2) laser beam fast moving, scanner uni heat-affected zone plate surface heats up rapidly and generates compact oxidation layer or cladding layer, intensification is only conducted by heat in non-scanner uni heat-affected zone, by path planning laser beam before reaching oxidizing temperature, complete and scan and generate compact oxidation layer or cladding layer, effectively prevent sheet material high-temperature oxydation.
(3) can replace the heating furnace in existing heat forming technology, and remove the haul manipulator between heating furnace and press, significantly reduce production line equipment volume, shortening heat process for stamping and forming flow process.
Accompanying drawing explanation
Fig. 1 is high-strength panel LASER HEATING treatment process schematic diagram.Wherein: 1. patrix; 2. coat; 3. sheet material; 4. support bar; 5. counterdie; 6. laser beam; 7.XYZ three-dimensional workbench; 8. laser generator; 9. control system; 10. infrared radiation thermometer; 11. shape measuring instruments.
Fig. 2 is laser beam flying path schematic diagram in the specific embodiment one.In figure, the direction of arrow is laser beam moving direction, and a is the first laser beam, and b is the second laser beam.
Fig. 3 is laser beam flying path schematic diagram in the specific embodiment two.In figure, the direction of arrow is laser beam moving direction, and a is the first laser beam, and b is the second laser beam.
Fig. 4 is laser beam flying path schematic diagram in the specific embodiment three.In figure, the direction of arrow is laser beam moving direction, and a is the first laser beam, and b is the second laser beam, and c is the 3rd laser beam, and d is the 4th laser beam.
Fig. 5 is laser beam flying path schematic diagram in the specific embodiment four.In figure, the direction of arrow is laser beam moving direction, and a is the one one laser beam, and b is the second laser beam.
Fig. 6 is laser beam flying path schematic diagram in the specific embodiment five.In figure, the direction of arrow is laser beam moving direction, a1 is first laser beam flying the first passage, a2 is first laser beam flying the second passage, a3 is the first laser beam flying the 3rd passage, b1 is second laser beam flying the first passage, b2 is second laser beam flying the second passage, and b3 is the second laser beam flying the 3rd passage.
Fig. 7 is laser beam flying path schematic diagram in the specific embodiment six.In figure, the direction of arrow is laser beam moving direction, and a is the first laser beam, and b is the second laser beam.
Fig. 8 is laser beam flying path schematic diagram in the specific embodiment seven.In figure, the direction of arrow is laser beam moving direction, and a is the first laser beam, and b is the second laser beam.
The specific embodiment
Below in conjunction with accompanying drawing, describe details and the working condition of the technical scheme of the present invention's proposition in detail.
Fig. 1 is that the present invention carries out high-strength panel LASER HEATING treatment process schematic diagram.Mould comprises patrix (1), counterdie (5), support bar (4).Sheet material (3) is positioned on support bar (4).Control system (9) comprises the input information output to XYZ three-dimensional workbench (7), laser generator (8), infrared radiation thermometer (10), shape measuring instrument (11), control XYZ three-dimensional workbench (7) is mobile, laser generator (8) Emission Lasers bundle (6) irradiates sheet material (3), infrared radiation thermometer (10) is tested sheet material (3) Temperature Distribution, shape measuring instrument (11) test sheet material (3) surface coating layer (2) varied in thickness, the information change of whole process feeds back to control system (9), completes real-time monitoring heat treated.
The specific embodiment one: adopt TC4 titanium alloy square plate in present embodiment, be of a size of 500mm * 500mm * 1.5mm, after surface cleaning, apply carbon black, Fig. 2 is present embodiment laser beam flying path schematic diagram, in figure, the direction of arrow is laser beam moving direction, a is the first laser beam, and b is the second laser beam.The power of the first and second laser beams is 1000W, and spot diameter is 1mm, rate travel 20mm/s, heat treated 13.1s.Upper surface temperature range is 960 ℃ to 1000 ℃, and oxide layer is evenly distributed, thickness approximately 0.25 μ m, and underlaying surface temperature scope is 880 ℃ to 920 ℃, oxide layer is evenly distributed, thickness approximately 0.12 μ m.
The specific embodiment two: what present embodiment was different from the specific embodiment one is to adopt the laser beam flying path shown in Fig. 3, heat treated 9.4s.Other is identical with the specific embodiment one.
The specific embodiment three: what present embodiment was different from the specific embodiment one is to adopt the laser beam flying path shown in Fig. 4, and in figure, a is the first laser beam, and b is the second laser beam, and c is the 3rd laser beam, and d is the 4th laser beam, heat treated 5.7s.Other is identical with the specific embodiment one.
The specific embodiment four: what present embodiment was different from the specific embodiment one is that circular slab is of a size of Φ 500mm * 2mm, adopts the laser beam flying path shown in Fig. 5, heat treated 175.2s.Other is identical with the specific embodiment one.
The specific embodiment five: what present embodiment was different from the specific embodiment four is to adopt the laser beam flying path shown in Fig. 6, in figure, a1 is first laser beam flying the first passage, a2 is first laser beam flying the second passage, a3 is the first laser beam flying the 3rd passage, b1 is second laser beam flying the first passage, b2 is second laser beam flying the second passage, b3 is the second laser beam flying the 3rd passage, the rate travel of the first laser beam is 20mm/s, the rate travel of the second laser beam is 13mm/s, heat treated 94.3s.Other is identical with the specific embodiment four.
The specific embodiment six: what present embodiment was different from the specific embodiment one is that I-shaped template adopts the laser beam flying path shown in Fig. 7, heat treated 81.7s.Other is identical with the specific embodiment one.
The specific embodiment seven: what present embodiment was different from the specific embodiment six is to adopt the laser beam flying path shown in Fig. 8, heat treated 84.8s.Other is identical with the specific embodiment six.
According to above-mentioned embodiment, scope all can be implemented described in content of the present invention, and the present invention is not only confined to above-mentioned embodiment.
The invention provides a kind ofly for hot formed high-strength panel LASER HEATING processing method, through reality test proof, the efficiency of heating surface is high, oxidation protection is effective.
Claims (7)
1. for hot press-formed high-strength panel LASER HEATING processing method, it is characterized in that carrying out according to the following steps: pretreatment high-strength panel is positioned on the support bar of diel top, lasing light emitter outgoing laser beam scanning plate surface is implemented heating, and the technical parameter of adjusting in real time lasing light emitter by online infrared measurement of temperature and three-dimensional coordinate measurement is uniformly distributed to control sheet material bulk temperature and surface compact product layer.
2. according to claim 1ly for hot press-formed high-strength panel LASER HEATING processing method, it is characterized in that, described lasing light emitter can be continuously or pulse, can adopt single or multiple collaborative.
3. according to claim 1ly for hot press-formed high-strength panel LASER HEATING processing method, it is characterized in that, described laser beam can be even type or Gaussian distribution type isotype, can be the light spot shapes such as circular, rectangle or annular.
4. according to claim 1ly for hot press-formed high-strength panel LASER HEATING processing method, it is characterized in that, described laser beam flying plate surface can be that a time or multi-pass repeat, and scanning process can be continuously or be interrupted and carry out.
5. according to claim 1ly for hot press-formed high-strength panel LASER HEATING processing method, it is characterized in that, described high-strength panel can be simple metal, alloy or metal-base composites.Can be the material that plasticity is good, can be also the material of fragility, difficult distortion.
6. according to claim 1 for hot press-formed high-strength panel LASER HEATING processing method, it is characterized in that, described pretreatment high-strength panel can be plate surface brushing one deck black light-absorbing material, as pitch-dark, carbon black etc., the heat absorption coefficients of increase to laser beam, also can be plate surface paving stomach layer of metal or nonmetallic kind or multiple mixed-powder, under LASER HEATING effect, laid powder and plate surface matrix material form the even cladding layer that one deck adhesion is strong.
7. according to claim 1ly for hot press-formed high-strength panel LASER HEATING processing method, it is characterized in that, the technical parameter of described adjustment lasing light emitter is mainly power, rate travel, spot diameter and the scanning pattern of laser beam.
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105033513A (en) * | 2015-06-25 | 2015-11-11 | 大连理工大学 | Auxiliary stamping forming method with welding technique locally modified |
| CN105107939A (en) * | 2015-09-18 | 2015-12-02 | 武汉理工大学 | Continuous hot stamping device and technology |
| CN105234264A (en) * | 2015-09-29 | 2016-01-13 | 江苏金源锻造股份有限公司 | Steel plate electromagnetic hot stamping production line and hot stamping forming method thereof |
| WO2017124832A1 (en) * | 2016-01-18 | 2017-07-27 | 苏州大学张家港工业技术研究院 | Method for forming laser rapidly-formed part |
| CN107062600A (en) * | 2017-05-15 | 2017-08-18 | 北京航空航天大学 | A kind of alkali metal air chamber low noise heating means based on laser |
| CN107433301A (en) * | 2016-05-27 | 2017-12-05 | 香港生产力促进局 | The method and device of laser assisted punching press high intensity and lightweight parts |
| CN107639168A (en) * | 2016-07-20 | 2018-01-30 | 香港生产力促进局 | Hybrid electromagnetic senses and the process for stamping and its device of laser heating |
| CN107695192A (en) * | 2017-10-19 | 2018-02-16 | 重庆宝钢汽车钢材部件有限公司 | Purging system in hot forming tool |
| CN108526309A (en) * | 2017-03-06 | 2018-09-14 | 上海强精金属制品有限公司 | Progressive die for the processing of micro-wave oven connection sheet |
| CN109482877A (en) * | 2018-12-19 | 2019-03-19 | 北京航星机器制造有限公司 | A kind of laser absorption coating and its application |
| CN111097817A (en) * | 2019-11-28 | 2020-05-05 | 北京航星机器制造有限公司 | Laser-assisted heating plate bending device and method |
| CN112207133A (en) * | 2020-07-24 | 2021-01-12 | 上海工程技术大学 | Superplastic forming method and device for metal composite material |
| CN112240802A (en) * | 2019-07-18 | 2021-01-19 | 博世汽车部件(苏州)有限公司 | Method and system for monitoring a processing temperature during processing of a workpiece |
| CN113774376A (en) * | 2021-09-09 | 2021-12-10 | 中国矿业大学 | Laser cladding self-adaptive scanning path planning method based on transient temperature field feedback |
| CN118357083A (en) * | 2024-06-18 | 2024-07-19 | 武汉大学 | Three-dimensional pigment spraying system and method based on large model texture generation |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105033513A (en) * | 2015-06-25 | 2015-11-11 | 大连理工大学 | Auxiliary stamping forming method with welding technique locally modified |
| CN105107939A (en) * | 2015-09-18 | 2015-12-02 | 武汉理工大学 | Continuous hot stamping device and technology |
| CN105234264A (en) * | 2015-09-29 | 2016-01-13 | 江苏金源锻造股份有限公司 | Steel plate electromagnetic hot stamping production line and hot stamping forming method thereof |
| WO2017124832A1 (en) * | 2016-01-18 | 2017-07-27 | 苏州大学张家港工业技术研究院 | Method for forming laser rapidly-formed part |
| CN107433301A (en) * | 2016-05-27 | 2017-12-05 | 香港生产力促进局 | The method and device of laser assisted punching press high intensity and lightweight parts |
| CN107639168A (en) * | 2016-07-20 | 2018-01-30 | 香港生产力促进局 | Hybrid electromagnetic senses and the process for stamping and its device of laser heating |
| CN107639168B (en) * | 2016-07-20 | 2019-08-30 | 香港生产力促进局 | The process for stamping and its device of hybrid electromagnetic induction and laser heating |
| CN108526309A (en) * | 2017-03-06 | 2018-09-14 | 上海强精金属制品有限公司 | Progressive die for the processing of micro-wave oven connection sheet |
| CN107062600A (en) * | 2017-05-15 | 2017-08-18 | 北京航空航天大学 | A kind of alkali metal air chamber low noise heating means based on laser |
| CN107695192A (en) * | 2017-10-19 | 2018-02-16 | 重庆宝钢汽车钢材部件有限公司 | Purging system in hot forming tool |
| CN109482877A (en) * | 2018-12-19 | 2019-03-19 | 北京航星机器制造有限公司 | A kind of laser absorption coating and its application |
| CN112240802A (en) * | 2019-07-18 | 2021-01-19 | 博世汽车部件(苏州)有限公司 | Method and system for monitoring a processing temperature during processing of a workpiece |
| CN112240802B (en) * | 2019-07-18 | 2024-09-27 | 博世汽车部件(苏州)有限公司 | Method and system for monitoring a processing temperature during processing of a workpiece |
| CN111097817A (en) * | 2019-11-28 | 2020-05-05 | 北京航星机器制造有限公司 | Laser-assisted heating plate bending device and method |
| CN112207133A (en) * | 2020-07-24 | 2021-01-12 | 上海工程技术大学 | Superplastic forming method and device for metal composite material |
| CN113774376A (en) * | 2021-09-09 | 2021-12-10 | 中国矿业大学 | Laser cladding self-adaptive scanning path planning method based on transient temperature field feedback |
| CN113774376B (en) * | 2021-09-09 | 2022-06-28 | 中国矿业大学 | Laser cladding self-adaptive scanning path planning method based on transient temperature field feedback |
| CN118357083A (en) * | 2024-06-18 | 2024-07-19 | 武汉大学 | Three-dimensional pigment spraying system and method based on large model texture generation |
| CN118357083B (en) * | 2024-06-18 | 2024-08-30 | 武汉大学 | Three-dimensional pigment spraying system and method based on large model texture generation |
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