CN103658985A - Method for welding non-coating stainless steel plate in laser mode - Google Patents

Method for welding non-coating stainless steel plate in laser mode Download PDF

Info

Publication number
CN103658985A
CN103658985A CN201210339457.6A CN201210339457A CN103658985A CN 103658985 A CN103658985 A CN 103658985A CN 201210339457 A CN201210339457 A CN 201210339457A CN 103658985 A CN103658985 A CN 103658985A
Authority
CN
China
Prior art keywords
welding
stainless steel
laser welding
sheet material
steel sheet
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201210339457.6A
Other languages
Chinese (zh)
Other versions
CN103658985B (en
Inventor
韩晓辉
王素环
刘胜龙
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CRRC Qingdao Sifang Co Ltd
Original Assignee
CSR Qingdao Sifang Locomotive and Rolling Stock Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by CSR Qingdao Sifang Locomotive and Rolling Stock Co Ltd filed Critical CSR Qingdao Sifang Locomotive and Rolling Stock Co Ltd
Priority to CN201210339457.6A priority Critical patent/CN103658985B/en
Publication of CN103658985A publication Critical patent/CN103658985A/en
Application granted granted Critical
Publication of CN103658985B publication Critical patent/CN103658985B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/18—Working by laser beam, e.g. welding, cutting or boring using absorbing layers on the workpiece, e.g. for marking or protecting purposes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2103/00—Materials to be soldered, welded or cut
    • B23K2103/50—Inorganic material, e.g. metals, not provided for in B23K2103/02 – B23K2103/26
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/20—Bonding
    • B23K26/21—Bonding by welding
    • B23K26/24—Seam welding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/20—Bonding
    • B23K26/32—Bonding taking account of the properties of the material involved
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2101/00—Articles made by soldering, welding or cutting
    • B23K2101/006—Vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2101/00—Articles made by soldering, welding or cutting
    • B23K2101/18—Sheet panels
    • B23K2101/185—Tailored blanks

Abstract

The invention relates to a method for welding a non-coating stainless steel plate in a laser mode. An upper layer panel and a lower layer panel are stacked up, a layer of protecting film is arranged on the exposed surface of the lower layer panel, and the upper layer panel and the lower layer panel are connected by enabling a laser welding light beam to penetrate through the protecting film to reach a certain depth of the lower layer panel. On the premise that the assembling precision meets the laser welding requirements, the welding technology methods are selected in the aspects of controlling the appearance quality and guaranteeing the connector connecting strength according to the product requirements for a railway vehicle non-coating stainless steel vehicle body and the technology characteristics, and a certain welding width and a certain welding depth are controlled by controlling the welding technology parameters such as welding power and welding speed. The welding joint cannot be oxidized and the welding heat can be more centralized by adopting the special technologies of welding the exposed wall plate provided with the protecting film and placing an aluminum alloy base plate on the lower surface of a workpiece, the strength of the welding joint is guaranteed, the back face of the exposed welding joint cannot deform obviously, and the color of the back face of the exposed welding joint cannot change obviously.

Description

A kind of without coated stainless steel sheet method for laser welding
Technical field
The present invention relates to a kind of corrosion resistant plate method for laser welding, particularly a kind of corrosion resistant plate method for laser welding that has exposed surface commercialization requirement.
Background technology
In the rail vehicles such as subway, light rail, EMUs, the car body of promotion and application stainless steel material progressively, stainless steel has higher intensity and corrosion resistance, and have lightweight, maintenance cost is low, attractive in appearance, outer surface is without features such as applications.In prior art, for the welding between stainless steel wallboard and wallboard reinforcement, all adopt laser welding process.As shown in Figure 1, for traditional welding method schematic diagram, adopt traditional laser welding process, although can guarantee the bonding strength of joint, speed of welding is also very fast, but after welding, the outer surface welding deformation of wallboard is larger, presents the phenomenon of oxidation tint because of high-temperature heating simultaneously, for outer surface, adopts the stainless steel car body without coating process, its exposed surface has higher commercialization requirement, and the distortion and the metachromatism that due to welding, cause all can directly affect its appearance effect.
Summary of the invention
Main purpose of the present invention is to address the above problem and is not enough, provides a kind of without coated stainless steel sheet method for laser welding, makes corrosion resistant plate exposed surface without obviously distortion and variable color, reaches the appearance effect of commercialization requirement.
For achieving the above object, technical scheme of the present invention is:
A kind of without coated stainless steel sheet method for laser welding; by upper and lower two-layer sheet material stack; on the exposed surface of described lower floor sheet material, layer protecting film is set, makes Laser Welding light beam pass and reach lower plywood certain depth from top plate, realize the connection between upper and lower two-ply.
Further, described diaphragm is PVC.
Further, described diaphragm is paved with the outer surface of whole sheet material, or described diaphragm is only laid on the position of weld seam.
Further, described diaphragm by glue the outer surface at described sheet material.
Further, the thickness of described diaphragm is 0.05-0.3mm.
Further, below touching in described protection, re-lay one deck aluminium alloy backing plate.
Further, the thickness of described aluminium alloy backing plate is 5-30mm.
Further, the thickness of described aluminium alloy backing plate is 20mm.
Further, described aluminium alloy backing plate is paved with the outer surface of whole described lower floor sheet material, or described aluminium alloy backing plate is only laid on the position of weld seam.
Further, the depth of penetration of described lower floor sheet material is (0.15-0.4) t, and wherein t is lower floor's sheet metal thickness.
Content to sum up, of the present invention a kind of without coated stainless steel sheet method for laser welding, compared with prior art, tool has the following advantages:
(1) the present invention is directed to rail vehicle without product requirement and the process characteristic of application stainless steel car body; during welding; at lower plywood backboard face, paste layer protecting film; realize the isolation of surface of the work and air; guaranteeing that weld seam is not oxidized, neither affect welding quality guarantees weld strength; guarantee again weld appearance light, commercialization quality is guaranteed.
(2) at lower plywood backboard face pad aluminium alloy plate; utilize the feature protection surface of the work that aluminum alloy materials hardness is moderate; guarantee that workpiece exposed surface welding deformation is less and be not scratched; utilize the feature that aluminum alloy materials thermal conductivity is higher that the unnecessary welding heat in the back side is taken away; alleviate back of weld sealing wire; not only guarantee weld strength but also protected to expose back of weld without obviously distortion and variable color, thereby reached good appearance effect.
Accompanying drawing explanation
Fig. 1 is traditional welding method schematic diagram;
Fig. 2 welding method schematic diagram of the present invention.
As depicted in figs. 1 and 2, upper strata sheet material 1, lower floor's sheet material 2, diaphragm 3, aluminium alloy backing plate 4, the outer surface 5 of lower floor's sheet material.
The specific embodiment
Below in conjunction with accompanying drawing and the specific embodiment, the present invention is described in further detail:
As shown in Figure 2, of the present invention a kind of without coated stainless steel sheet method for laser welding, be for being welded to connect between stainless steel car body Side fascia and Side fascia reinforcement.Wherein, reinforcement on upper strata sheet material 1 finger Side fascia, as brace summer etc., the stainless Side fascia of lower floor's sheet material 2 finger, the outer surface 5 of the back side of Side fascia for exposing, outer surface 5 is not done application and is processed, so the back side of Side fascia need to meet higher commercialization appearance requirement, and upper strata sheet material 1 is overlapped on the front of lower floor's sheet material 2 and is welded to connect.
Before welding, on the outer surface 5 exposing, paste layer protecting film 3 at lower floor's sheet material 2, diaphragm 3 is realized the isolation of surface of the work and air.Paste layer protecting film 3 and can not affect welding quality; can guarantee weld strength; and; because diaphragm 3 is by surface of the work and air insulated; make the weld seam on the outer surface 5 of lower floor's sheet material 2 can be not oxidized, and then can guarantee weld appearance light, meet Side fascia commercialization appearance requirement; after welding completion, diaphragm 3 is removed.
Diaphragm 3 preferably adopts the film of PVC material; between diaphragm 3 and lower floor's sheet material 2, by acrylic acid gum, fit; the thickness of diaphragm 3 is difficult for too thin; the too thin effect that does not have protection, but too thick meeting increases material cost, through great many of experiments, confirms; the thickness of diaphragm 3 is preferably selected 0.05-0.3mm; guaranteeing under the prerequisite of its protective effect, from the consideration of material cost angle, the thickness optimal selection of diaphragm 3 is 0.1mm.
Diaphragm 3 has two kinds of modes to stick on lower floor's sheet material 2, and a kind of is the outer surface 5 that diaphragm 3 is paved with whole lower floor sheet material 2, and the protection effect of this mode is optimum; Another kind is only the diaphragm 3 with certain width to be laid on to the position that is positioned at weld seam.
Before welding; protection touch 3 below re-lay one deck aluminium alloy backing plate 4; utilize the feature protection surface of the work that aluminum alloy materials hardness is moderate; guarantee that outer surface of workpiece 5 welding deformations are less and be not scratched; utilize the feature that aluminum alloy materials thermal conductivity is higher that the unnecessary welding heat in the back side is taken away; guarantee that welding heat is more concentrated, alleviate back of weld sealing wire, thereby reach good appearance effect.
The thickness of aluminium alloy backing plate 4 is chosen as 5-30mm, in the present embodiment, preferably adopts and is approximately the aluminium alloy backing plate 4 that 20mm is thick.Aluminium alloy backing plate 4 can be paved with outer surface 5 belows of whole lower floor sheet material 2, also can only be laid on the position of weld seam.For the radiating effect that guarantees that aluminium alloy backing plate 4 is good, in the present embodiment, preferably the whole specification of aluminium alloy backing plate 4 is identical with lower floor's sheet material 2 sizes to be welded.
During welding; lower floor's sheet material 2 of coated with protective film 3 is laid on aluminium alloy backing plate 4; upper strata sheet material 2 is overlapped on to the upper surface of lower floor's sheet material 2; with hold down gag, fix; make Laser Welding light beam pass and reach lower floor's sheet material 2 certain depths from upper strata sheet material 1, and then complete the connection between upper strata sheet material 1 and lower floor's sheet material 2.
The welding parameters such as the bonding power arranging by control laser weld, speed of welding, the depth of penetration d that ensures the Laser Welding lap joint that the exposed surface of lower floor's sheet material 2 requires is (0.15-0.4) t, wherein, t is the thickness of lower floor's sheet material 2, molten wide S is between 0.6-1mm, thereby both guaranteed strength of welded joint, guaranteed to expose again the commercialization effect that joint is good.For example: 0.8+2.0 partial penetrated lap joint, bonding power is at 1700W, and speed of welding is at 4.0mm/min, and the fusion penetration d of corresponding joints is 0.4mm, and molten wide S is 0.6mm; And bonding power is at 1900W, speed of welding is at 3.5mm/min, and the fusion penetration d of corresponding joints is 0.8mm, and molten wide S is 1.0mm.
As mentioned above, given scheme content, can derive similar technical scheme by reference to the accompanying drawings.In every case be the content that does not depart from technical solution of the present invention, any simple modification, equivalent variations and the modification above embodiment done according to technical spirit of the present invention, all still belong in the scope of technical solution of the present invention.

Claims (10)

1. one kind without coated stainless steel sheet method for laser welding; it is characterized in that: by upper and lower two-layer sheet material stack; on the exposed surface of described lower floor sheet material, layer protecting film is set, makes Laser Welding light beam pass and reach lower plywood certain depth from top plate, realize the connection between upper and lower two-ply.
2. according to claim 1 without coated stainless steel sheet method for laser welding, it is characterized in that: described diaphragm is PVC.
3. according to claim 2 without coated stainless steel sheet method for laser welding, it is characterized in that: described diaphragm is paved with the outer surface of whole sheet material, or described diaphragm is only laid on the position of weld seam.
4. according to claim 2 without coated stainless steel sheet method for laser welding, it is characterized in that: described diaphragm is the outer surface at described sheet material by glue.
5. according to claim 1 without coated stainless steel sheet method for laser welding, it is characterized in that: the thickness of described diaphragm is 0.05-0.3mm.
6. according to claim 1 without coated stainless steel sheet method for laser welding, it is characterized in that: below touching in described protection, re-lay one deck aluminium alloy backing plate.
7. according to claim 6 without coated stainless steel sheet method for laser welding, it is characterized in that: the thickness of described aluminium alloy backing plate is 5-30mm.
8. according to claim 7 without coated stainless steel sheet method for laser welding, it is characterized in that: the thickness of described aluminium alloy backing plate is 20mm.
9. according to claim 6 without coated stainless steel sheet method for laser welding, it is characterized in that: described aluminium alloy backing plate is paved with the outer surface of whole described lower floor sheet material, or described aluminium alloy backing plate is only laid on the position of weld seam.
According to described in claim 1 to 9 any one without coated stainless steel sheet method for laser welding, it is characterized in that: the depth of penetration of described lower floor sheet material is (0.15-0.4) t, wherein t is lower floor's sheet metal thickness.
CN201210339457.6A 2012-09-13 2012-09-13 A kind of welding non-coating stainless steel plate in laser mode Active CN103658985B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201210339457.6A CN103658985B (en) 2012-09-13 2012-09-13 A kind of welding non-coating stainless steel plate in laser mode

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201210339457.6A CN103658985B (en) 2012-09-13 2012-09-13 A kind of welding non-coating stainless steel plate in laser mode

Publications (2)

Publication Number Publication Date
CN103658985A true CN103658985A (en) 2014-03-26
CN103658985B CN103658985B (en) 2016-12-21

Family

ID=50298424

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201210339457.6A Active CN103658985B (en) 2012-09-13 2012-09-13 A kind of welding non-coating stainless steel plate in laser mode

Country Status (1)

Country Link
CN (1) CN103658985B (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106937501A (en) * 2017-03-30 2017-07-07 东莞劲胜精密组件股份有限公司 A kind of use for electronic products combined housing and preparation method thereof
CN108907460A (en) * 2018-07-09 2018-11-30 奇鋐科技股份有限公司 Hot cell manufacturing method
CN110961788A (en) * 2019-11-12 2020-04-07 北京交通大学 Method for enhancing corrosion resistance of austenitic stainless steel laser welding seam
CN111805087A (en) * 2020-05-20 2020-10-23 中车青岛四方机车车辆股份有限公司 Double-beam laser welding method and welding device

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60133970A (en) * 1983-10-27 1985-07-17 Mitsubishi Heavy Ind Ltd Production of adsorption panel for low-temperature service
JP2007038241A (en) * 2005-08-02 2007-02-15 Nisshin Steel Co Ltd Welding method for galvanized steel sheet
CN101811228A (en) * 2010-03-31 2010-08-25 深圳市大族激光科技股份有限公司 Laser spot welding method and laser welding products
JP2010247232A (en) * 2009-03-26 2010-11-04 Kobe Steel Ltd Method for manufacturing welded structure
CN102500907A (en) * 2011-10-26 2012-06-20 首都航天机械公司 Method for precise control of diffusion welding / stop welding region

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60133970A (en) * 1983-10-27 1985-07-17 Mitsubishi Heavy Ind Ltd Production of adsorption panel for low-temperature service
JP2007038241A (en) * 2005-08-02 2007-02-15 Nisshin Steel Co Ltd Welding method for galvanized steel sheet
JP2010247232A (en) * 2009-03-26 2010-11-04 Kobe Steel Ltd Method for manufacturing welded structure
CN101811228A (en) * 2010-03-31 2010-08-25 深圳市大族激光科技股份有限公司 Laser spot welding method and laser welding products
CN102500907A (en) * 2011-10-26 2012-06-20 首都航天机械公司 Method for precise control of diffusion welding / stop welding region

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
张群莉: "镀锌钢-AISI304不锈钢非熔透型激光叠焊工艺", 《中国激光》, 30 June 2011 (2011-06-30), pages 1 - 1 *
王洪潇: "轨道客车用SUS301L不锈钢非熔透型激光搭接焊工艺", 《热加工工艺》, 31 October 2009 (2009-10-31) *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106937501A (en) * 2017-03-30 2017-07-07 东莞劲胜精密组件股份有限公司 A kind of use for electronic products combined housing and preparation method thereof
CN108907460A (en) * 2018-07-09 2018-11-30 奇鋐科技股份有限公司 Hot cell manufacturing method
CN110961788A (en) * 2019-11-12 2020-04-07 北京交通大学 Method for enhancing corrosion resistance of austenitic stainless steel laser welding seam
CN111805087A (en) * 2020-05-20 2020-10-23 中车青岛四方机车车辆股份有限公司 Double-beam laser welding method and welding device
CN111805087B (en) * 2020-05-20 2022-02-15 中车青岛四方机车车辆股份有限公司 Double-beam laser welding method and welding device

Also Published As

Publication number Publication date
CN103658985B (en) 2016-12-21

Similar Documents

Publication Publication Date Title
CN103600166A (en) Method and device for auxiliary heating type ultrasound rapid forming
CN103658985A (en) Method for welding non-coating stainless steel plate in laser mode
EP2008751A3 (en) Friction stir welding method of joining at least two adjoining work-pieces with application of an adhesive between the at least two workpieces
EP2340910A3 (en) Joint product between steel product and aluminum material and spot welding method for the joint product
JPH0328268B2 (en)
CN105033421B (en) Dissimilar metal electric arc glue weldering connection system and method
CN103551721B (en) Ultrasonic prefabricated transitional band welds the method preparing heterogenous material joint subsequently
CN106862730A (en) A kind of vertical butt welding method of slab
CN102794557A (en) Method for increasing size of resistance spot weld nugget on thin-plate side of multilayer plates in different thickness
CN101474727A (en) Laser-arc hybrid welding method of light sheet T type joint
JP5315207B2 (en) Dissimilar material joined body and dissimilar material resistance spot welding method
CN103737162A (en) Compound welding method
CN105149714B (en) Metallic plate is without impression glue welding connection method
CN104002029B (en) A kind of improved flat board butt joint submerged-arc welding
CN102974925B (en) A kind of by TIG electric arc collaborative heating optimization aluminium/steel MIG soldered fitting method
CN106112224A (en) Steel construction U-shaped floor angle welding full penetration technique
CN104088500B (en) Method for laying anti-corrosion titanium lining on steel chimney of power plant
KR20120031857A (en) Junction method of each other different quality of material
CN106915090A (en) A kind of Multi-angle heat radiation welding structure of car trunk tailgate
CN204867760U (en) Welding backing structure
CN107876941A (en) Steel plate buried arc welding method
CN109514052A (en) A kind of high-strength steel welding method of thin plate and application
CN202718287U (en) Composite corrugated plate
CN103071923B (en) A kind of laser-transmitting composite connecting method
CN102658465B (en) Manufacturing method of aluminum alloy composite corrugated board

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
CB02 Change of applicant information

Address after: Jihongtan town Chengyang District Shandong city Qingdao province Jinhong road 266111 No. 88

Applicant after: CRRC QINGDAO SIFANG CO., LTD.

Address before: Jihongtan town Chengyang District Shandong city Qingdao province Jinhong road 266111 No. 88

Applicant before: CSR Qingdao Sifang Locomotive and Rolling Stock Co., Ltd.

COR Change of bibliographic data
C14 Grant of patent or utility model
GR01 Patent grant