CN103056525A - Novel method of laser transmission welding connection - Google Patents
Novel method of laser transmission welding connection Download PDFInfo
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- CN103056525A CN103056525A CN2012105815616A CN201210581561A CN103056525A CN 103056525 A CN103056525 A CN 103056525A CN 2012105815616 A CN2012105815616 A CN 2012105815616A CN 201210581561 A CN201210581561 A CN 201210581561A CN 103056525 A CN103056525 A CN 103056525A
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Abstract
The utility model discloses a novel method of laser transmission welding connection, and belongs to the technical field of laser transmission welding, in particular to a laser transmission welding of mental and polymer. According to the novel method of laser transmission welding connection, chemical corrosion is performed towards the surface of metal material which will be welded so that concave pits can be formed in the surface and the appearance and shape of the surface will be changed. The surface corroded material is as the low layer light-suction material, and the polymer is as the upper layer light-suction material. The metal and the polymer are connected in overlapped mode. The metal and the polymer are clamped by restraint layer and are imposed with welding pressure. Semiconductor laser generator conducts laser transmission welding so that surface temperature can reach the melting point of the upper layer polymer rapidly and the surface melts. The molten polymer flows into the concave pits under the influence of welding pressure and an engaged interface which is in riveted structure is formed on the welding seam, accordingly the connection strength of laser transmission welding is improved. Besides, the novel method of laser transmission welding connection can be widely applied in the field of laser transmission welding requiring high connection strength.
Description
Technical field
The invention belongs to the laser-transmitting welding technology field, refer in particular to a kind of novel laser-transmitting weld metal and the method for polymer.Form pit with chemical corrosion method in the metal surface, the polymer of fusing is subject to the effect inflow pit of welding pressure when carrying out the laser-transmitting welding, form a kind of interlock interface of riveted structure in the commissure, increase the contact area that is connected of metal and polymer, so that metal and polymer better mutually combine, thereby can realize that improving laser-transmitting is welded to connect intensity.
Background technology
At present, the laser-transmitting solder technology has fast as one, accurately, noncontact, the high-new process technology of the distinct characteristic of the little grade in heat affected area, at polymer and polymer, polymer and metal etc. are of the same race is used widely with field of welding processing foreign material, welding product is accompanied by the development of laser-transmitting solder technology, more and more be applied to auto industry, the fields such as medical science, in document " the PET film is connected with the thin titanium board laser-transmitting ", welding can be applied in the medical science through laser-transmitting for titanium and polymer, and research improves but it points out to remain the mechanical property of laser-transmitting jointing further.
Bonding strength is an important evaluation index of weldquality, usually can weigh with peel strength and hot strength.Along with the development of technology, auto parts and components, the encapsulation of electronic device product, medicine equipment etc. are welded to connect intensity to laser-transmitting and have proposed higher requirement.Document " the PET film is connected experimental study with 316L stainless sheet steel laser-transmitting " is pointed out, chemical reaction has occured on metal and the polymer weld seam contact-making surface, metal and polymer surfaces rely on chemical bond joining, but its intensity can not reach the requirement in the ideal, if consider its technical study, that power is the bigger the better in theory, in fact power is crossed conference and is destroyed weldquality, this just need to seek when laser energy is moderate and a kind ofly can significantly improve the method that laser-transmitting is welded to connect intensity, to satisfy in the actual production high-intensity needs of technology such as encapsulation.What domestic and international method for improving laser weld strength compared at present is many, improve weld strength such as using secondary pulse process, use ridge for enhancing weld strength etc., but the application of these methods in the laser-transmitting welding field is subject to different restrictions, that is to say that also there is very large space in the method that present raising laser-transmitting is welded to connect intensity, a kind of method is proposed in the foreign literature " Effect of anodizing on pulsed Nd:YAG laser joining of polyethylene terephthalate (PET) and aluminium alloy (A5052) ", be characterized in: the A5052 aluminum alloy surface is carried out anodic oxidation, form one deck anodic oxide coating, when welding, laser-transmitting is used for absorbing more laser energy, thereby form deeper molten bath, realize that laser-transmitting is welded to connect the raising of intensity.And the present invention is directed to the material characteristics of metal and polymer, change the metal material surface pattern by chemical attack, be formed with in the metal surface and be beneficial to the pit that improves laser absorption, during the laser-transmitting welding, can so that the metal surface be rapidly heated, the polymer of overlap joint melts fast with it, under the effect of welding pressure, the polymer of fusing enters in the pit of metal surface, form a kind of interlock interface of riveted structure in the commissure, can improve laser-transmitting and be welded to connect intensity, especially hot strength.
Summary of the invention
The purpose of this invention is to provide the method that a kind of new pattern laser transmission is welded to connect.
According to the laser-transmitting weld characteristics, method with chemical attack forms pit on the surface of absorbed layer metal material, when welding, flow to pit so that be subject to the melt polymer of welding pressure effect, form a kind of interlock interface of similar riveted structure in the commissure, increase the contact area that is connected of metal and polymer, so that metal and polymer better mutually combine, can realize improving the bonding strength of laser-transmitting welding.
Concrete steps of the present invention are:
A) form pit: the primary morphology metal of surfacing is put in the metal erosion solution that contains halide ion, forming diameter in the primary morphology metal surface is 46.60um-1103.53um, the degree of depth is the pit of 134.9um-582.80um, corrosion pit more than the 24mm2 area is more than 6, remove the corrosion product on primary morphology metal (11) surface, dry up for subsequent use;
B) weldment assembling: metal is as lower floor's light absorbent after the surface being formed the corrosion of pit, polymer places on the workbench as the upper strata light transmissive material, polymer is overlapped on the rear metal of corrosion, metal is closely pressed close to after polymer and the corrosion, middle very close to each other, restraint layer places on the polymer, and pressing plate places the restraint layer top, apply welding pressure by the pressure head that is placed on the pressing plate, by being located at the pressure sensor gaging pressure numerical value between the rear metal of corrosion and the workbench;
C) soldering test: the laser instrument generator continuous with energy carries out laser-transmitting to restraint layer, the energy of laser beam, laser facula size are by laser control computer regulated and control, laser beam sees through restraint layer and polymer makes metallic surface temperature reach fast the fusing point of upper strata polymer, polymer surfaces melts, polymer is subject to the welding pressure that pressure head applies, the top layer fusing of polymer also flows to pit, forms the interlock interface of riveted structure in the commissure.
Can be on the primary morphology metal among the present invention according to the position of actual welds, the anticorrosion mask is pasted in the metal surface that does not need to corrode, selected zone of not corroding selects the degree of depth of pit will be with reference to the thickness of actual welding metal material simultaneously.
Metal is connected with polymer among the present invention form adopts overlap joint, that is: metal below, polymer places on the metal, metal has certain contact area that overlaps with polymer.
Realization of the present invention, the method that provides a kind of novel laser-transmitting to weld, this method can be better, faster, convenient, safe and reliable raising laser-transmitting is welded to connect intensity, so that being welded to connect the intensity field, the raising laser-transmitting obtains new progress, no longer simple dependence Optimizing Process Parameters obtains higher weldquality more attractive in appearance, the method is so that metal is connected more firm with the part of polymer, durability in medical science and optoelectronic areas acquisition encapsulation realizes the application that member connects in the exigent field of the bonding strengths such as automobile.The present invention promotes the laser-transmitting solder technology in industrial application by realizing the bonding strength that improves the laser-transmitting welding.
Description of drawings
Fig. 1 is the type of attachment of welding material.
Fig. 2 is weldment assembling of the present invention and schematic diagram.
Fig. 3 is the pattern of 304 stainless steel surfaces pits under SET among the embodiment.
Fig. 4 is the profile after embodiment welds.
Among the figure, 1 computer, 2 pressure sensors, metal after 3 corrosion, 4 polymer, 5 restraint layers, 6 pressing plates, 7 laser generators, 8 pressure heads, 9 workbench, 10 pits, 11 primary morphology metals, 12 nylon, 13 enter the nylon of pit, 14 304 stainless steels.
The specific embodiment
The present invention is further described below in conjunction with specific embodiment, welds transparent nylon and 304 stainless steel metals with the present invention.
Weldment is prepared: the transparent light transmissive material nylon of the welding of selection (12) is of a size of 10x10x2mm, and light absorbent 304 stainless steels 14 are of a size of 10x10x0.6mm, and what laser instrument adopted is the continuous semiconductor laser generator of energy 7, and peak power is 130w, and wavelength is
The surface treatment of weldment: sample 304 stainless steels 14 are sticked the anticorrosion mask to the zone that need not corrode as required, so that metal and metal erosion liquid contact area are about 20mm
2About, put it in 5%-15% the liquor ferri trichloridi that configures, about 26 ± 1 ℃ of temperature, take out after 2-5 hours, can form diameter and be about 46.60um-1103.53um, the degree of depth is about the pit of 134.9um-582.80um, cleans its surface with ethanol and separates out material, wash simultaneously the impurity on nylon 12 surfaces with ethanol, dry up rear for subsequent use.Metal is in 10% liquor ferri trichloridi, and post-etching zonal corrosion pit quantity was about about 10 in 3 hours, and the pit average diameter is about 652.95um, and the pit mean depth is about 370.93um, and the SET pattern of the pit that the corrosion rear surface forms as shown in Figure 3.
The assembling of weldment and welding: 304 stainless steels 14 that step 2 is obtained are placed on the workbench 9 of semiconductor laser as lower floor's light absorbent, nylon 12 is as the upper strata light absorbent, by laser generator control computer 1 regulating power be: 56w, spot diameter are 2mm.The overlap joint type of attachment that nylon 12 and 304 stainless steels 14 adopt as shown in Figure 1, nylon 12 and 304 stainless steels 14 are closely pressed close to, middle very close to each other, with K9 glass as restraint layer, apply welding pressure 0.043KN at restraint layer placement pressing plate 6 on glass and at pressing plate with pressure head 8, laser generator carries out the laser-transmitting welding according to 120mm/min speed.
Form high-intensity welding point, the butt welded seam analysis can be seen the nylon 13 that enters pit, as shown in Figure 4 the shape appearance figure after the welding.
Claims (7)
1. the method that the new pattern laser transmission is welded to connect is characterized in that, concrete steps are:
A) form pit: the primary morphology metal (11) of surfacing is put in the metal erosion solution that contains halide ion, forming diameter on primary morphology metal (11) surface is 46.60um-1103.53um, the degree of depth is the pit of 134.9um-582.80um, 24mm
2Corrosion pit more than the area is removed the corrosion product on primary morphology metal (11) surface more than 6, dries up for subsequent use;
B) weldment assembling: metal (3) is as lower floor's light absorbent after the surface being formed the corrosion of pit, polymer (4) places on the workbench (9) as the upper strata light transmissive material, polymer (4) is overlapped on the rear metal (3) of corrosion, metal (3) is closely pressed close to after polymer (4) and the corrosion, middle very close to each other, restraint layer (5) places on the polymer (4), pressing plate (6) places restraint layer (5) top, apply welding pressure by the pressure head (8) that is placed on the pressing plate (6), by being located at pressure sensor (2) the gaging pressure numerical value between the rear metal (3) of corrosion and the workbench (9);
C) soldering test: the laser instrument generator (7) continuous with energy carries out laser-transmitting to restraint layer (5), the energy of laser beam, laser facula size are by laser control computer (1) regulation and control, laser beam sees through restraint layer (5) and polymer (4) makes metallic surface temperature reach fast the fusing point of upper strata polymer (4), melt on polymer (4) surface, polymer (4) is subject to the welding pressure that pressure head (8) applies, the top layer fusing of polymer (4) also flows to pit (10), forms the interlock interface of riveted structure in the commissure.
2. according to claim 1 a kind of improves the method that laser-transmitting is welded to connect intensity; it is characterized in that; described steps A) in; need according to the lap position of primary morphology metal (11) with polymer (4); paste the anticorrosion mask in the zone that primary morphology metal (11) does not weld, block the zone that protection is not corroded.
3. the method that is welded to connect of according to claim 1 and 2 a kind of new pattern laser transmission is characterized in that described steps A) in, by the degree of depth of the time control pit of control primary morphology metal (11) in metal erosion solution.
4. the method that is welded to connect of according to claim 1 and 2 a kind of new pattern laser transmission is characterized in that described step B) in, restraint layer (5) is transparent for application laser, when laser beam sees through without obvious energy loss.
5. the method that is welded to connect of according to claim 1 and 2 a kind of new pattern laser transmission is characterized in that described polymer (4) is transparent nylon.
6. the method that is welded to connect of according to claim 5 a kind of new pattern laser transmission is characterized in that described primary morphology metal (11) is 304 stainless steel metals, and the described metal erosion solution that contains halide ion is 5%-15% liquor ferri trichloridi.
7. the method that is welded to connect of according to claim 6 a kind of new pattern laser transmission is characterized in that described steps A) in, described primary morphology metal (11) is in 5%-15% liquor ferri trichloridi, and 26 ± 1 ℃ of temperature were taken out after 2-5 hours.
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103480966A (en) * | 2013-10-15 | 2014-01-01 | 吉林大学 | Austenite stainless steel lap-over laser welding method |
| CN106041298A (en) * | 2016-06-24 | 2016-10-26 | 山东大学 | Gradual type laser shock continuous riveting method and device |
| CN106584868A (en) * | 2016-12-13 | 2017-04-26 | 大族激光科技产业集团股份有限公司 | Method and device for laser synchronous mask welding encapsulation for flexible OLED |
| CN109708783A (en) * | 2019-02-22 | 2019-05-03 | 无锡昆仑富士仪表有限公司 | A kind of corrosion resistant metal diaphragm component and its method for laser welding |
| CN110891730A (en) * | 2017-06-27 | 2020-03-17 | 激光工程应用公司 | Method for building a substrate, assembly comprising a substrate and a device for building said substrate, and substrate having such a structure |
| CN111390386A (en) * | 2020-04-02 | 2020-07-10 | 武汉华工激光工程有限责任公司 | Laser stitch welding method compatible with material pressing gap |
| CN114871582A (en) * | 2022-06-22 | 2022-08-09 | 天津市奥联特钢结构安装工程有限公司 | System and method for laser welding of plastic and metal |
| CN114872326A (en) * | 2022-05-13 | 2022-08-09 | 南京航空航天大学 | Hot-press welding equipment and method for lap joint structure of thermoplastic composite material and light alloy |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201164928Y (en) * | 2007-11-14 | 2008-12-17 | 深圳市大族激光科技股份有限公司 | Laser balance adjustment apparatus |
| JP2009039987A (en) * | 2007-08-10 | 2009-02-26 | Toyobo Co Ltd | Method of joining thermoplastic resin material and metallic material |
| WO2009151099A1 (en) * | 2008-06-12 | 2009-12-17 | 日本軽金属株式会社 | Integrally injection-molded aluminum/resin article and process for producing the same |
| CN101609794A (en) * | 2007-01-26 | 2009-12-23 | 硅源公司 | Temperature-controlled appliance and method during the thick-film material cleavage is handled |
| CN202199934U (en) * | 2011-08-16 | 2012-04-25 | 北京博晖创新光电技术股份有限公司 | Welding device for substrate and diaphragm of diaphragm movement polymer micro-fluidic chip |
| CN102712136A (en) * | 2010-01-12 | 2012-10-03 | 日本轻金属株式会社 | Method of laser joining of aluminum alloy member and resin member |
-
2012
- 2012-12-28 CN CN2012105815616A patent/CN103056525A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101609794A (en) * | 2007-01-26 | 2009-12-23 | 硅源公司 | Temperature-controlled appliance and method during the thick-film material cleavage is handled |
| JP2009039987A (en) * | 2007-08-10 | 2009-02-26 | Toyobo Co Ltd | Method of joining thermoplastic resin material and metallic material |
| CN201164928Y (en) * | 2007-11-14 | 2008-12-17 | 深圳市大族激光科技股份有限公司 | Laser balance adjustment apparatus |
| WO2009151099A1 (en) * | 2008-06-12 | 2009-12-17 | 日本軽金属株式会社 | Integrally injection-molded aluminum/resin article and process for producing the same |
| CN102712136A (en) * | 2010-01-12 | 2012-10-03 | 日本轻金属株式会社 | Method of laser joining of aluminum alloy member and resin member |
| CN202199934U (en) * | 2011-08-16 | 2012-04-25 | 北京博晖创新光电技术股份有限公司 | Welding device for substrate and diaphragm of diaphragm movement polymer micro-fluidic chip |
Non-Patent Citations (1)
| Title |
|---|
| XIAO WANG 等: "Modeling and optimization of laser transmission joining process between PET and 316L stainless steel using response surface methodology", 《OPTICS & LASER TECHNOLOGY》 * |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103480966A (en) * | 2013-10-15 | 2014-01-01 | 吉林大学 | Austenite stainless steel lap-over laser welding method |
| CN106041298A (en) * | 2016-06-24 | 2016-10-26 | 山东大学 | Gradual type laser shock continuous riveting method and device |
| CN106584868A (en) * | 2016-12-13 | 2017-04-26 | 大族激光科技产业集团股份有限公司 | Method and device for laser synchronous mask welding encapsulation for flexible OLED |
| CN110891730A (en) * | 2017-06-27 | 2020-03-17 | 激光工程应用公司 | Method for building a substrate, assembly comprising a substrate and a device for building said substrate, and substrate having such a structure |
| CN110891730B (en) * | 2017-06-27 | 2022-09-06 | 激光工程应用公司 | Method for building a substrate, assembly comprising a substrate and a device for building said substrate, and substrate having such a structure |
| CN109708783A (en) * | 2019-02-22 | 2019-05-03 | 无锡昆仑富士仪表有限公司 | A kind of corrosion resistant metal diaphragm component and its method for laser welding |
| CN109708783B (en) * | 2019-02-22 | 2023-09-01 | 无锡昆仑富士仪表有限公司 | Laser welding method of corrosion-resistant metal film sheet assembly |
| CN111390386A (en) * | 2020-04-02 | 2020-07-10 | 武汉华工激光工程有限责任公司 | Laser stitch welding method compatible with material pressing gap |
| CN111390386B (en) * | 2020-04-02 | 2021-06-25 | 武汉华工激光工程有限责任公司 | Laser stitch welding method compatible with material pressing gap |
| CN114872326A (en) * | 2022-05-13 | 2022-08-09 | 南京航空航天大学 | Hot-press welding equipment and method for lap joint structure of thermoplastic composite material and light alloy |
| CN114871582A (en) * | 2022-06-22 | 2022-08-09 | 天津市奥联特钢结构安装工程有限公司 | System and method for laser welding of plastic and metal |
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Application publication date: 20130424 |