Other

Toyota Jidosha Kabushiki Kaisha

Parker Asahi Co., Ltd.

Takeshi Sasagase

Akihiro Suzuki

Noriyuki Sato

Masayuki Uegane

Yoshihiko Eguchi

Masahiro Sato

Kazuo Ishii

Ayumi Watanabe

Nobuyuki Yoshitoshi

Takeshi Munemura

Hiroto Yanagibayashi

Fumio Hosoda

Hirokazu Shirai

In manufacturing an exhaust pipe of two-passage construction, a metallic plate having a first end and a second end respectively elongated in a longitudinal direction of the exhaust pipe is prepared. The metallic plate is bent into a substantially S shape in cross section. It has a diametrically extending central partition plate and a substantially semicircular peripheral wall on each lateral side of said partition plate in such a manner that a groove of substantially V shape in cross section having a substantially closed end on a radially inner side and an open end on a radially outer side is formed at each diametrically outer portion of the partition plate. A target is provided so as to elongate along the groove in a manner to extend substantially radially outward from the closed end. A welding arc is generated between the target and a welding gun disposed on a side of the open end such that the substantially closed end and the target are welded together.

Method of connecting two elongated portions of metallic plate, method of manufacturing exhaust pipe of two-passage construction, and exhaust pipe of two-passage construction

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Shizuoka-ken, Japan

Takeshi Sasagase