METHOD OF MANUFACTURING SLIDING MEMBER

Title:

METHOD OF MANUFACTURING SLIDING MEMBER

Document Type and Number:

WIPO Patent Application WO/2006/075520

Kind Code:

A1

Abstract:

A method of manufacturing a sliding member, wherein a laser beam is radiated on the sliding surface (4A) of a shoe (4) at a large number of points in parallel straight directions to form a large number of swelled parts (6) and to form recessed parts (7) adjacent to the swelled parts. The swelled parts (6) and the inside thereof are formed in a direct hardened part (11) with a high hardness, and the recessed parts (7) and the inside thereof are formed in a double hardened part (12) which is lower in hardness than the swelled parts (6). After the hardening by laser beam is performed, lapping is applied to the sliding surface (4A) up to the position of an imaginary line (15) to eliminate irregularities so as to form it in a smooth surface. Then, buffing is applied to the sliding surface (4A). By this, the portion of the sliding surface where the hardness is low is largely cut off more than the portion where the hardness is high, and a large number of micro recesses and projections are formed on the sliding surface (4A). Since the large number of micro recesses and projections are uniformly formed on the sliding surface (4A) of the shoe (4) and a lubricating oil is led therein, the shoe (4) having excellent seizure resistance can be provided.

More Like This:

JPS5452606	CUTLERY
WO/2012/019761	SHAPING METHOD FOR A WORKPIECE
WO/2023/198522	LASER-SHOCK HARDENING OF A SURFACE

Inventors:

KANEMITSU HIROSHI (JP)
HATTA MASAHARU (JP)

Application Number:

PCT/JP2005/023861

Publication Date:

July 20, 2006

Filing Date:

December 27, 2005

Export Citation:

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Assignee:

TAIHO KOGYO CO LTD (JP)
KANEMITSU HIROSHI (JP)
HATTA MASAHARU (JP)

International Classes:

C21D1/09; C21D9/00

Foreign References:

JPH07113421A	1995-05-02
JPH11107913A	1999-04-20
JPH02173212A	1990-07-04
JP2000145625A	2000-05-26
JPH0293018A	1990-04-03
JPH1072618A	1998-03-17

Other References: