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:
Oct. 22, 2019
Filed:
May. 31, 2016
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, Aichi-ken, JP;
Akinori Eda, Nagakute, JP;
Hideki Teshima, Miyoshi, JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota, JP;
Abstract
A laser build-up method according to an embodiment includes the processes of: forming an annular counter sunk groovein an edge of an opening of a port on a side of a combustion chamber; and irradiating a laser beamwhile a metallic powderis being supplied to the counter sunk grooveand successively forming a cladding layerfor a valve seat, in which: the cladding layeris formed while a seal gasis being sprayed onto a melt pool, the cladding layerincludes a starting end part, a part formed just after the starting end part is formed, an intermediate part, a part formed just before a terminating end part is formed, and a terminating end part, which are formed in this order.