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:
Jan. 12, 1988
Filed:
Aug. 08, 1986
Applicant:
Inventors:
Toshiharu Fukuizumi, Toyota, JP;
Hideo Nonoyama, Toyota, JP;
Assignee:
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C21D / ;
U.S. Cl.
CPC ...
148152 ; 148902 ; 148904 ;
Abstract
A process for producing a remelted and chilled camshaft comprises the steps of melting a sliding cam surface by TIG arc and forming a chill layer by self-cooling. When two adjacent cams are in positions at which a mutual influence from the magnetic arc blow of the TIG arc current applied to the cams can be felt, a melting current applied to two arc torches is alternately changed so that the sliding cam surface of one cam is melted while the other cam is in the nonmelted state.