MEMBER-JOINING METHOD, JOINED MEMBER STRUCTURE, AND JOINT TUBE

WIPO Patent Application WO/2014/119342

A1

A member-joining method for joining a first plate-shaped section (2a) of a first member (2) with a second plate-shaped section (3a) of a second member (3) by laser welding, the method being provided with: a member placement process for disposing the first member (2) and the second member (3) so that the first plate-shaped section (2a) overlaps with the second plate-shaped section (3a) in the thickness direction; a first laser irradiation process for forming a melted section (4A) by irradiating laser light (L1) on the first plate-shaped section (2a) that overlaps the second plate-shaped section; and a second laser irradiation process for irradiating laser light, after the melted section (4A) has solidified and formed a fused-solidified section (4a), on the surface of the fused-solidified section (4a) toward the first plate-shaped section (3a) with the fused-solidified section (4a) therebetween to form a welded section (4b) obtained from an alloy resulting from fusing the fused-solidified section (4a) with the second plate-shaped section (3a) that faces the fused-solidified section (4a) and to join the first plate-shaped section (2a) to the second plate-shaped section (3a) via the welded section (4b).

ASAMI KEIICHI (JP)
IMAMURA TOMONORI (JP)
TAKIGUCHI KINJI (JP)

PCT/JP2014/050074

August 07, 2014

January 07, 2014

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OLYMPUS CORP (JP)

B23K26/08; B23K26/21; F16L13/02

WO2010100851A1

2010-09-10

JP2010023048A	2010-02-04
JP2001096385A	2001-04-10
JPS5939491A	1984-03-03
JP2002079389A	2002-03-19
JP2011173146A	2011-09-08
JP2012135794A	2012-07-19
JP2868750B1	1999-03-10

See also references of EP 2952283A4

TANAI Sumio et al. (JP)
Sumio Tanai (JP)

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