METHOD FOR PRODUCING MACHINE PART, AND MACHINE PART - NIPPON STEEL & SUMITOMO METAL CORP

Title:

METHOD FOR PRODUCING MACHINE PART, AND MACHINE PART

Document Type and Number:

WIPO Patent Application WO/2016/117364

Kind Code:

A1

Abstract:

This method for producing a machine part has: a first step in which, by performing bending processing on an end portion of a material, a processed portion, which has a structure in which a plurality of layers having a thickness corresponding to the plate thickness of the material overlap, is formed in the material such that the plate thickness direction of said layers is orthogonal to the plate thickness direction of the material; and a second step in which, by performing forging processing on the processed portion, the layers of the processed portion are pressed by means of plastic deformation while the shape of the processed portion is changed to a target shape.

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Inventors:

YAMAGATA MITSUHARU (JP)
YAMAMOTO SHUJI (JP)
WADA YASUHIRO (JP)

Application Number:

PCT/JP2016/050320

Publication Date:

July 28, 2016

Filing Date:

January 07, 2016

Export Citation:

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Assignee:

NIPPON STEEL & SUMITOMO METAL CORP (JP)

International Classes:

B21J5/12; B21D22/30; B21D53/28; B21K1/30; F16H55/17; F16H41/24

Foreign References:

JPH0788582A	1995-04-04
JPH07256377A	1995-10-09
JPH049243A	1992-01-14
JPS58181451A	1983-10-24

Other References: