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. 13, 1987
Filed:
May. 29, 1986
Toshio Atsuta, Akashi, JP;
Takeshi Yamada, Kobe, JP;
Kawasaki Jukogyo Kabushiki Kaisha, Hyogo, JP;
Abstract
A pair of soft-metal blocks are placed side by side constrainingly on a stationary platen with a space therebetween such that the opposing flank surfaces of the blocks confront each other. Into the space is pressed downward by a movable platen a hard-metal block which has opposing flank surfaces having sharp edges at the lower ends thereof, respectively, the opposing flank surfaces also tapering correspondingly. As the hard-metal block is moved forcibly into the space, the edges operate to pare or peel respective surface layers of the opposing flank surfaces of the soft-metal blocks thereby to create respective fresh surfaces of the soft-metal blocks. The opposing flank surfaces of the hard-metal block are therefore pressed strongly against the fresh surfaces, respectively, as the hard-metal block advances, and strong diffusion welded joints are produced. The method is carried out at elevated temperature.