The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 29, 2010
Filed:
Mar. 08, 2006
Yukimitsu Suzuki, Anjo, JP;
Ichiro Arita, Anjo, JP;
Satoru Yamasumi, Itami, JP;
Masaru Seto, Kawanishi, JP;
Takahisa Iizuka, Noda, JP;
Kazuhiko Onoue, Kobe, JP;
Kunio Uchikoshi, Kobe, JP;
Yukimitsu Suzuki, Anjo, JP;
Ichiro Arita, Anjo, JP;
Satoru Yamasumi, Itami, JP;
Masaru Seto, Kawanishi, JP;
Takahisa Iizuka, Noda, JP;
Kazuhiko Onoue, Kobe, JP;
Kunio Uchikoshi, Kobe, JP;
Central Motor Wheel Co., Ltd., Anjo-shi, JP;
Kawasaki Jukogyo Kabushiki Kaisha, Kobe-shi, JP;
Abstract
To provide an arc start method in a consumable electrode type arc welding method capable of firmly executing arc start and capable of executing high quality high speed welding by restraining a welding defect from being brought about therefor, at a portion of a wire projected from a welding tip, a temperature of a front end portion of the wire is made to be at a temperature higher than a temperature of a portion thereof near the welding tip. The front end portion of the wire is preheated to 300° C. or higher, preferably, 450° C. or higher. The front end portion of the wire is preheated by generating arc for preheating. The preheating arc is generated in a spot-like shape at a position near a terminal end portion of a predetermined welding line by constituting a current lower than a welding current.