WO2004026523A1 - レーザー溶接方法 - Google Patents
レーザー溶接方法 Download PDFInfo
- Publication number
- WO2004026523A1 WO2004026523A1 PCT/JP2003/011523 JP0311523W WO2004026523A1 WO 2004026523 A1 WO2004026523 A1 WO 2004026523A1 JP 0311523 W JP0311523 W JP 0311523W WO 2004026523 A1 WO2004026523 A1 WO 2004026523A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- welding
- end point
- laser
- base material
- locus
- Prior art date
Links
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
- B23K26/08—Devices involving relative movement between laser beam and workpiece
-
- 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
- B23K26/08—Devices involving relative movement between laser beam and workpiece
- B23K26/082—Scanning systems, i.e. devices involving movement of the laser beam relative to the laser head
-
- 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
- B23K26/244—Overlap 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
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/04—Tubular or hollow articles
- B23K2101/06—Tubes
Definitions
- the present invention relates to a laser welding method for welding a mounting member to a base material, and more particularly, to a laser welding method for welding a pipe and a mounting member of a reinforce member used for an automobile to which an instrument panel and the like are attached.
- a laser welding method has been used when the base material and the mounting member are lap welded.
- FIG. 4A when welding the mounting member 1 0 2 to the base material 1 0 0 using a pipe, a circle corresponding to the outer peripheral shape of the base material 1 0 0 is attached to the mounting member 1 0 2.
- An arcuate flange portion 10 4 is formed.
- Welding is repeated by laser beam irradiation according to the welding trajectory 1 1 0 from the welding start point 1 0 6 to the welding end point 1 0 8 from above the flange part 10 4 ⁇ However, in laser welding Weld while melting the base metal without using a welding rod. For this reason, in this conventional method, when the previous weld is hardened, the base metal melted at the end of the welding is pulled to the previous weld, and the clay shown in Fig. 4B is used. 1 2 occurs.
- An object of the present invention is to provide a laser welding method in which a base material and an attachment member can be welded together without causing a decrease in strength. Disclosure of the invention
- the present invention has taken the following measures in order to solve the problem. That is,
- the welding is laser welding, and welding is performed by irradiating the flange portion with a laser beam along a welding trajectory from a welding start point to a welding end point, and until the welding trajectory reaches the welding end point.
- the welding end point is a portion that is folded back and does not overlap the welding start point and the welding end point and does not cause stress concentration due to an external force applied to the base material and the mounting member. This is the laser welding method.
- the welding trajectory is substantially C-shaped, and after turning back, a welding trajectory longer than the clay generated at the welding end point may be provided as the welding end point.
- the welding trajectory has a spiral shape of one or more rounds from the outer welding start point to the inner welding end point, and after the welding trajectory makes one round, further occurs at the welding end point.
- the welding end point may be set after providing a welding locus longer than the clay evening.
- the base material may be a pipe, and the flange portion may be formed in an arc shape according to an outer peripheral shape of the pipe. Further, the base material and the mounting member used for a reinforce housing for an instrument panel of an automobile may be used.
- the laser welding may be remote laser welding, in which a long-focus laser beam is reflected by a mirror and guided along the welding locus.
- FIG. 1 is a schematic oblique view showing a laser welding method as one embodiment of the present invention. It is a visual map
- FIG. 2 is an explanatory diagram of remote laser welding of the present embodiment
- FIGS. 3A and 3B are explanatory diagrams of a welding locus of the present embodiment
- FIGS. 4A and 4B are conventional diagrams. It is a schematic perspective view which shows welding of. BEST MODE FOR CARRYING OUT THE INVENTION
- 1 is a base material using a pipe.
- the base material 1 is a pipe having a diameter of 38.1 mm and a wall thickness of 1.0 mm. Used for reinhose men to which rumen panels are attached.
- An arcuate flange portion 4 is formed on the mounting member 2 welded to the base material 1 in accordance with the curved surface shape of the outer periphery of the base material 1.
- the thickness of the mounting member 2 is 6 mm, which is thicker than that of the base material 1, and the flange portion 4 is bent and formed by press molding or the like. It is configured so that it can be stacked in close contact with the outer periphery of the base material 1.
- remote laser welding is used for laser welding, and as shown in FIG. 2, a long-focus laser beam with a focal length of 60 to 100 mm from the welding laser oscillator 6 is used. 8 is oscillated, and the laser beam 8 applied to the mirror 10 is guided to the flange portion 4.
- the angle of the mirror 10 can be changed.
- the guiding direction of the laser beam 8 can be changed along the circumferential direction of the base material 1 and along the axial direction of the base material 1. . Therefore, the irradiation position of the laser beam 8 can be moved on a plane, but when guided to the curved surface of a pipe having a diameter of 38.1 mm as in this embodiment, the angle of the laser beam 8 is 20 Beyond this, energy diffusion increases, and welding beyond that angle becomes impossible.
- the maximum weld length of about 15 mm in the circumferential direction is the limit.
- the welding locus 16 from the welding start point 1 2 to the welding end point 1 4 by the laser beam 8 is made into a loop shape, and the welding start point 1 2 and the weld End point 1 It has a C-shape that does not overlap with 4.
- the reason why the welding start point 1 2 and the welding end point 1 4 are not overlapped is that if they overlap, they may melt and open holes.
- This welding trajectory 1 6 starts laser welding from the welding start point 1 2, and the welding trajectory 16 going from the welding start point 1 2 to the circumferential direction of the base material 1 is a semicircular arc-shaped folded portion 1 6 a. Folded and turned in the circumferential direction in the opposite direction, a straight part 16 b of a predetermined length was formed, and then folded back in the reverse direction by a semicircular arc-shaped folded part 16 c again. The laser welding is finished at the welding end point 14 which is a predetermined distance away from the welding start point 1 2.
- welding end points 14 are provided at locations where stress concentration due to external force applied to the base material 1 and the mounting member 2 does not occur.
- an external force is applied to the mounting member 2 to generate a moment around the base material 1 in the axial direction.
- Welding end point 14 is not provided in such a folded portion 16 c, but a linear portion 16 d that is longer than the clay portion generated at the welding end point 14 from the other folded portion 16 c is provided.
- the welding end point is set to 1. Yo Therefore, no stress concentration occurs at the welding end point 14. That is, even if an external force is repeatedly applied between the base material 1 and the mounting member 2, it acts on the folded portions 16 a and 16 c where proper welding is performed, resulting in a decrease in fatigue strength.
- the base material 1 and the mounting member 2 can be lap welded together.
- the folded portions 1 6 a and 16 c are not limited to arcs, but may be rectangular, or a welding locus 1 by folded portions 1 6 a and 16 c and straight portions 1 6 b and 16 d 6 may be elliptical.
- the welding trajectory 6 is not limited to a substantially C shape, and may be a spiral welding trajectory 18 as shown in FIG. 3B.
- This welding locus 18 is a welding locus 18 from the welding start point 20 to the outside and from the welding start point 20 to the inner welding end point 22.
- This welding trajectory 18 is folded back from the welding start point 20 by a semicircular arc-shaped folded portion 1 8 a and turned in the circumferential direction in the reverse direction, and a straight portion 1 8 b having a predetermined length is formed. Then, a straight arc portion 18 d is formed by folding back in the reverse direction again at a semicircular arc-shaped folding portion 18 c. After the straight portion 18 d is formed, the folded portion 18 e is formed inside the welding start point 20 by folding back at the semicircular arc-shaped folded portion 8 e.
- a straight line portion 18 f that is longer than the clay junction generated at the welding end point 22 is provided, and then the welding end point 22 is reached.
- the welding trajectory 18 is set to the welding end point 2 2 after providing a straight line portion 18 f longer than the clay event occurring at the welding end point 22 after one round.
- the welding end point 2 2 may be at the turn-back portion 18 e, and at this time, it is sufficient if the turn-back portion 18 e is secured in accordance with the length of the clay that occurs at the welding end point 2 2.
- the welding trajectory 18 having one or more rounds may be formed so that the welding end point 22 is inside the spiral welding trajectory 18 with respect to the welding start point 20.
- the welding locus 18 is formed by arcuate folded portions 1 8 a, 1 8 c, 1 8 e without providing the straight portions 1 8 b, 1 8 d, 1 8 f, and the last folded portion A welding end point 2 2 may be provided at 1 8 e.
- the straight portions 18 b, 18 d, and 18 f may also be elliptical welding loci 18 that are arcuate.
- the present invention is particularly suitable for welding a pipe and an attachment member of a reinhose member to which an automobile instrument panel or the like is attached.
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Laser Beam Processing (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/527,616 US20060163221A1 (en) | 2002-09-09 | 2003-09-09 | Laser welding method |
EP03797568A EP1543914A1 (en) | 2002-09-09 | 2003-09-09 | Laser welding method |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2002262864A JP2004098122A (ja) | 2002-09-09 | 2002-09-09 | レーザー溶接方法 |
JP2002-262864 | 2002-09-09 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004026523A1 true WO2004026523A1 (ja) | 2004-04-01 |
Family
ID=32024655
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2003/011523 WO2004026523A1 (ja) | 2002-09-09 | 2003-09-09 | レーザー溶接方法 |
Country Status (4)
Country | Link |
---|---|
US (1) | US20060163221A1 (ja) |
EP (1) | EP1543914A1 (ja) |
JP (1) | JP2004098122A (ja) |
WO (1) | WO2004026523A1 (ja) |
Families Citing this family (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10344526A1 (de) * | 2003-09-24 | 2005-04-28 | Kuka Schweissanlagen Gmbh | Verfahren zum Laserstrahlschweißen von Bauteilen |
DE102005004787B4 (de) * | 2005-02-01 | 2009-05-20 | Daimler Ag | Verwendung eines Bleches und Verfahren zur Herstellung einer Laserschweißnaht mit verkleinerten Endkrater |
JP4523514B2 (ja) * | 2005-08-05 | 2010-08-11 | 株式会社ユタカ技研 | ロックアップクラッチ付き流体伝動装置 |
DE102005038099B3 (de) * | 2005-08-10 | 2007-01-11 | Hugo Kern Und Liebers Gmbh & Co. Kg Platinen- Und Federnfabrik | Verfahren zum Stumpfschweißen eines auf Biegung beanspruchten Werkstückes |
JP4978111B2 (ja) * | 2006-08-14 | 2012-07-18 | 日産自動車株式会社 | レーザ溶接方法および装置 |
JP5038123B2 (ja) * | 2007-12-27 | 2012-10-03 | 近畿車輌株式会社 | 鉄道車両構体の重ねレーザ溶接方法、重ねレーザ溶接継手、鉄道車両の構体構造 |
DE102009034081A1 (de) * | 2009-07-21 | 2011-01-27 | Osram Gesellschaft mit beschränkter Haftung | Entladungslampe und Verfahren zur Herstellung einer derartigen Entladungslampe |
JP5523045B2 (ja) * | 2009-10-02 | 2014-06-18 | 日立造船株式会社 | コイルの製造装置及び製造方法 |
US20110097598A1 (en) * | 2009-10-28 | 2011-04-28 | Mcnutt Matthew M | Laser-welded aluminum alloy parts and method for manufacturing the same |
DE102009052220A1 (de) * | 2009-11-06 | 2011-05-12 | Volkswagen Ag | Verfahren zum Herstellen einer Schweißnaht mittels eines Energiestrahls |
JP5609632B2 (ja) | 2010-12-27 | 2014-10-22 | スズキ株式会社 | レーザ重ね溶接方法 |
JP5880032B2 (ja) * | 2011-12-27 | 2016-03-08 | トヨタ自動車株式会社 | レーザー溶接方法 |
JP6094395B2 (ja) * | 2013-06-17 | 2017-03-15 | 株式会社デンソー | 回転電機の回転子 |
US11110547B2 (en) * | 2014-01-08 | 2021-09-07 | Panasonic Intellectual Property Management Co., Ltd. | Laser welding method |
WO2015129231A1 (ja) * | 2014-02-25 | 2015-09-03 | パナソニックIpマネジメント株式会社 | レーザ溶接方法 |
WO2015186168A1 (ja) * | 2014-06-02 | 2015-12-10 | 日産自動車株式会社 | レーザ溶接方法および組電池 |
JP6205064B2 (ja) * | 2014-08-08 | 2017-09-27 | 本田技研工業株式会社 | レーザ溶接装置及びレーザ溶接方法 |
CN108406112B (zh) * | 2015-02-09 | 2021-07-27 | 通快激光英国有限公司 | 激光焊缝 |
CN108778608B (zh) * | 2016-03-15 | 2020-11-17 | 杰富意钢铁株式会社 | 搭接激光焊接接头、该焊接接头的制造方法以及汽车用骨架部件 |
JP6176428B1 (ja) * | 2016-03-15 | 2017-08-09 | Jfeスチール株式会社 | 重ねレーザ溶接継手、該溶接継手の製造方法および自動車用骨格部品 |
DE102017108681A1 (de) * | 2017-04-24 | 2018-10-25 | Scherdel Innotec Forschungs- Und Entwicklungs-Gmbh | Verfahren zum Zusatzwerkstoff-freien Laserstrahlverschweißen |
KR102407608B1 (ko) * | 2018-05-21 | 2022-06-10 | 제이에프이 스틸 가부시키가이샤 | 겹침 레이저 용접 조인트, 겹침 레이저 용접 조인트의 제조 방법 및 자동차용 골격 부품 |
US11445664B2 (en) | 2019-05-10 | 2022-09-20 | Deere & Company | Auger assembly for harvesting machine |
JP2021196778A (ja) * | 2020-06-11 | 2021-12-27 | パナソニックIpマネジメント株式会社 | 生成方法、推定方法、生成装置、および推定装置 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5992189A (ja) * | 1982-11-18 | 1984-05-28 | Toshiba Corp | 鋼板枠の製造方法 |
JP2003145285A (ja) * | 2001-11-12 | 2003-05-20 | Futaba Industrial Co Ltd | レーザー溶接方法 |
JP2003290951A (ja) * | 2002-03-29 | 2003-10-14 | Honda Motor Co Ltd | 溶接構造物、溶接方法および溶接装置 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4095976A (en) * | 1975-12-29 | 1978-06-20 | Cabot Corporation | Weldable alloy |
US4658110A (en) * | 1984-05-01 | 1987-04-14 | Avco Corporation | Method and apparatus for welding |
IT1179064B (it) * | 1984-08-20 | 1987-09-16 | Fiat Auto Spa | Procedimento di saldatura di lamiere |
US6218641B1 (en) * | 1998-04-22 | 2001-04-17 | Lucent Technologies, Inc. | Method for compensating stress induced in an optical component |
-
2002
- 2002-09-09 JP JP2002262864A patent/JP2004098122A/ja active Pending
-
2003
- 2003-09-09 US US10/527,616 patent/US20060163221A1/en not_active Abandoned
- 2003-09-09 EP EP03797568A patent/EP1543914A1/en active Pending
- 2003-09-09 WO PCT/JP2003/011523 patent/WO2004026523A1/ja active Application Filing
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5992189A (ja) * | 1982-11-18 | 1984-05-28 | Toshiba Corp | 鋼板枠の製造方法 |
JP2003145285A (ja) * | 2001-11-12 | 2003-05-20 | Futaba Industrial Co Ltd | レーザー溶接方法 |
JP2003290951A (ja) * | 2002-03-29 | 2003-10-14 | Honda Motor Co Ltd | 溶接構造物、溶接方法および溶接装置 |
Also Published As
Publication number | Publication date |
---|---|
US20060163221A1 (en) | 2006-07-27 |
JP2004098122A (ja) | 2004-04-02 |
EP1543914A1 (en) | 2005-06-22 |
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