DRIVE PLATE AND MANUFACTURING METHOD THEREOF

Title:

DRIVE PLATE AND MANUFACTURING METHOD THEREOF

Document Type and Number:

WIPO Patent Application WO/2012/160903

Kind Code:

A1

Abstract:

A plate (10) and a tooth (2) are integrally formed from one sheet of a steel plate material. Over the entire surface layer, the plate (10) and tooth (2) have a carburized layer (15, 25) with a higher carbon concentration than the central portion in the thickness direction. The carburized layer (15) in the plate (10) is harder than the central portion (17) in the thickness direction, and the carburized layer (25) in the tooth (2) has undergone quenching treatment and is even harder than the carburized layer (15) of the plate (10). The carbon concentration in the central portions (17, 27) in the thickness direction of the plate (10) and the tooth (2) is 0.2 mass% or less, and the carbon concentration of the carburized layers (15, 25) exceeds 0.2 mass%.

Inventors:

IWATA DAISUKE (JP)
HORI TOMOYUKI (JP)
YOKOYAMA NAOKI (JP)
OBAYASHI KOJI (JP)
TAGUCHI KEITA (JP)
SHIBATA HIROSHI (JP)

Application Number:

PCT/JP2012/060311

Publication Date:

November 29, 2012

Filing Date:

April 17, 2012

Export Citation:

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Assignee:

AISIN AW CO (JP)
IWATA DAISUKE (JP)
HORI TOMOYUKI (JP)
YOKOYAMA NAOKI (JP)
OBAYASHI KOJI (JP)
TAGUCHI KEITA (JP)
SHIBATA HIROSHI (JP)

International Classes:

F16H55/17; B21D53/28; C21D1/06; C21D1/09; C21D1/10; C21D1/76; C21D9/32; C22C38/00; F16H41/24

Foreign References:

JPH09144849A	1997-06-03
JP2008175306A	2008-07-31
JP2001200348A	2001-07-24
JP2001020016A	2001-01-23
JP2009007603A	2009-01-15
JPH06323399A	1994-11-25
JPH10259447A	1998-09-29
JP2010281419A	2010-12-16
JP2002286117A	2002-10-03

Other References: