METHOD OF PRODUCING STAINLESS STEEL FORMED ARTICLE HAVING EXCELLENT SHAPE PRECISION

Title:

METHOD OF PRODUCING STAINLESS STEEL FORMED ARTICLE HAVING EXCELLENT SHAPE PRECISION

Document Type and Number:

Japanese Patent JP3942934

Kind Code:

B2

Abstract:

PROBLEM TO BE SOLVED: To provide a method of easily producing a stainless steel formed article having an excellent shape precision by press forming and the subsequent machining with stainless steel having excellent machinability as the stock.
SOLUTION: Stainless steel containing, by mass, ≤0.5% C, ≤1.0% Si, ≤1.0% Mn, 10 to 30% Cr, ≤0.60% Ni, 0.5 to 6.0% Cu, ≥0.005% Sn or In and ≤1.0% Al, and in which a second phase essentially consisting of Cu, and containing ≥10% Sn or In is dispersed into a matrix in the ratio of ≥0.2 vol.% is press- formed, and is thereafter subjected to machining. The stainless steel can be subjected to the press forming as heated.

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Inventors:

Satoshi Suzuki
Hideki Tanaka
Naoto Hiramatsu

Application Number:

JP2002097174A

Publication Date:

July 11, 2007

Filing Date:

March 29, 2002

Export Citation:

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Assignee:

Nisshin Steel Co., Ltd.

International Classes:

B21D22/02; C22C38/00; B21D22/20; C21D6/00; C22C38/42; C22C38/54; (IPC1-7): C22C38/00; B21D22/02; B21D22/20; C21D6/00; C22C38/42; C22C38/54

Domestic Patent References:

JP2002212680A
JP62211351A
JP2001355048A
JP56062902A
JP9256116A
JP2000008145A
JP54143763A
JP8120419A

Foreign References:

WO2002092869A1

Attorney, Agent or Firm:

Okada Manri

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