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:
Mar. 23, 2004
Filed:
Dec. 12, 2002
Hirofumi Sonoda, Narashino, JP;
Kenji Okuyama, Narashino, JP;
Junichi Ibukuro, Narashino, JP;
Takanori Yahaba, Wako, JP;
Masato Takikawa, Wako, JP;
Yasutomo Ichiyama, Tokyo, JP;
Toshiyasu Ukena, Tokyo, JP;
Honda Giken Kogyo Kabushiki Kaisha, Tokyo, JP;
Abstract
A twin spots pulse laser welding apparatus is disclosed which is used for providing a defect-free weld in a butt welding gap. The welding apparatus comprises a YAG laser oscillator a chopper circuit for controlling the value of the lamp current of the oscillator, a chopping controller a control panel and a pulse generator for applying a lamp current base value Wb and a peak value Wp and a pulsating pulse to the controller, and a twin spots laser head for converging a laser beam delivered from the YAG laser oscillator to two foci R, L which are distributed in x direction with a very small spacing therebetween. YAG laser beam delivered from the YAG laser oscillator is guided through an optical fiber cable to the laser head.