Search International and National Patent Collections

1. (WO2010123035) METHOD OF HYBRID WELDING AND HYBRID WELDING APPARATUS

Pub. No.:    WO/2010/123035    International Application No.:    PCT/JP2010/057089
Publication Date: Fri Oct 29 01:59:59 CEST 2010 International Filing Date: Thu Apr 22 01:59:59 CEST 2010
IPC: B23K 26/20
Applicants: IHI INSPECTION & INSTRUMENTATION CO., LTD.
株式会社IHI検査計測
IHI CORPORATION
株式会社IHI
Oowaki, Katsura
大脇 桂
MATSUZAKA, Fumio
松坂文夫
FUJITA, Shuichi
藤田秀一
INOSE, Kotaro
猪瀬幸太郎
Inventors: Oowaki, Katsura
大脇 桂
MATSUZAKA, Fumio
松坂文夫
FUJITA, Shuichi
藤田秀一
INOSE, Kotaro
猪瀬幸太郎
Title: METHOD OF HYBRID WELDING AND HYBRID WELDING APPARATUS
Abstract:
A hybrid welding apparatus comprises a laser diode (2), an irradiation unit (4) capable of transforming a laser output from the diode into a laser beam (LB) and directing the laser beam to a base metal thereby melting a base metal surface (BS) while moving the laser beam, a wire supply unit (5) for continuously supplying a welding wire (W) to a molten portion (BW) on the metal surface which moves as the laser beam from the irradiation unit moves, and a welding power source (7) which supplies electric power to the welding wire to make a wire end positioned at the molten portion ready to melt. A high productivity and a high precision can be attained when welding a thick plate, while a degraded micro structure of weld metal and a crack can be prevented from occurring when welding a welding-resistant metal such as high tensile stress steel.