Metal fusion bonding – Process – With shaping
Patent
1997-06-03
2000-06-20
Ryan, Patrick
Metal fusion bonding
Process
With shaping
228142, 228170, 228171, 1563045, B21D 3900, B23K 3102, B29C 6500
Patent
active
060767251
ABSTRACT:
Sections 1 and 2 each in the form of a welded pipe (square pipe) are provided. The sections 1 and 2 are brought into abutment with each other so that the respective end faces 3a and 3b abut each other at a predetermined angle .beta. between each section and its axial direction. The sections 1 and 2 are arranged symmetrically with respect to each other. Acute end portions of the abutted portion are chamfered to from a plane part. Corners of the sections 1 and 2 are rounded. In such a combined state of both sections, the abutted portion is welded in the circumferential direction to form a weld bead. As a result, penetration of weld metal to the section 1 and that to the section 2 become equal to each other. Thus, it becomes possible to fabricate a welded structure having a uniform weld bead and having improved strength and reliability of welded portions.
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Patent Abstracts of Japan, vol. 95, No. 8, Sep. 29, 1995, JP 7-137655, May 30, 1995.
Patent Abstracts of Japan, vol. 95, No. 6, Jul. 31, 1995, JP 7-080570, Mar. 28, 1995.
Metals Handbook, Ed. 9, vol. 6, p. 69-72, 1983.
Fujii Takahito
Hashimura Toru
Imamura Yoshihaya
Kurokawa Tomohiro
Yonezawa Kazuo
Kabushiki Kaisha Kobe Seiko Sho
Ryan Patrick
Stoner Kiley
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