Fabrication method of tubular member

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United States of America Patent

PATENT NO 11821050
SERIAL NO

17199479

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Abstract

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A part of a plate member is machined to remove material therefrom so as to obtain an intermediate product having a thickness difference. Then, the intermediate product is bent and both edges thereof are joined to obtain a cylindrical body. Further, a first heat treatment of heating the cylindrical body is performed. Then, through holes penetrating from the outside to the inside of the peripheral wall of the cylindrical body are formed. Pipe parts are joined to the tubular body thus obtained to form a tubular member. This tubular member is subjected to a second heat treatment.

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Patent Owner(s)

Patent OwnerAddress
HONDA MOTOR CO LTDTOKYO 107-8556

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kiyama, Takeshi Wako, JP 4 14
Miki, Yuji Wako, JP 32 87

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