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.

Date of Patent:
Jun. 09, 2020

Filed:

Jan. 07, 2016
Applicant:

Nippon Steel & Sumitomo Metal Corporation, Tokyo, JP;

Inventors:

Mitsuharu Yamagata, Chiba, JP;

Shuji Yamamoto, Kitakyushu, JP;

Yasuhiro Wada, Kitakyushu, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B21K 1/30 (2006.01); B21D 53/28 (2006.01); B21J 5/12 (2006.01); F16H 55/17 (2006.01); B21D 22/30 (2006.01); B23K 20/00 (2006.01); B23K 20/02 (2006.01); B23P 15/14 (2006.01); B23K 101/00 (2006.01); F16H 41/24 (2006.01);
U.S. Cl.
CPC ...
B21K 1/30 (2013.01); B21D 22/30 (2013.01); B21D 53/28 (2013.01); B21J 5/12 (2013.01); B23K 20/002 (2013.01); B23K 20/02 (2013.01); B23P 15/14 (2013.01); F16H 55/17 (2013.01); B23K 2101/008 (2018.08); F16H 41/24 (2013.01); F16H 2055/176 (2013.01);
Abstract

A method of manufacturing a mechanical part of the present invention includes a first process of forming, by performing a folding processing to an end portion of the material, a portion to be processed having a structure, in which a plurality of layers respectively having a thickness corresponding to a plate thickness of a material overlap each other, in the material such that a plate thickness direction of the layer is orthogonal to a plate thickness direction of the material; and a second process of changing, by performing a forging processing to the portion to be processed, a shape of the portion to be processed to a target shape while press-welding the layers of the portion to be processed to each other by plastic deformation.


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