Diamond sintered compact

Details Diamond sintered compact Diamond sintered compact

2011-07-26

2011-07-26

Turner, Archene (Department: 1784)

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Including a second component containing structurally defined...

C051S307000, C051S309000, C428S332000, C428S408000, C428S469000, C428S698000, C428S701000

Reexamination Certificate

active

07985470

ABSTRACT:
An object is to raise both the wear resistance and chipping resistance of diamond sintered compacts while taking advantage of the characteristics of highly chipping-resistant microfine-grain diamond sintered compacts. A sintered diamond layer3is formed by sintering diamond grains and a binder on a cemented carbide substrate2. This sintered diamond layer3comprises a main diamond layer4and a Co-rich diamond layer5that is present between the main diamond layer4and the cemented carbide substrate2and that has a Co content larger than that of the main diamond layer4; the main diamond layer has a residual compressive stress of 1.5 GPa to 3 GPa.

REFERENCES:
patent: 3831428 (1974-08-01), Wentorf, Jr. et al.
patent: 4636253 (1987-01-01), Nakai et al.
patent: 4766040 (1988-08-01), Hillert et al.
patent: 5011514 (1991-04-01), Cho et al.
patent: 5441817 (1995-08-01), Rai
patent: 5498480 (1996-03-01), Tank et al.
patent: 5560716 (1996-10-01), Tank et al.
patent: 5618625 (1997-04-01), Okamura
patent: 5645617 (1997-07-01), Frushour
patent: 5759216 (1998-06-01), Kanada et al.
patent: 6063333 (2000-05-01), Dennis
patent: 6342301 (2002-01-01), Yoshida et al.
patent: 6344149 (2002-02-01), Oles
patent: 6432150 (2002-08-01), Levashov et al.
patent: 6544308 (2003-04-01), Griffin et al.
patent: 1 190 791 (2002-03-01), None
patent: 39-20483 (1964-09-01), None
patent: 52-12126 (1977-04-01), None
patent: 61-125739 (1986-06-01), None
patent: 02-199072 (1990-08-01), None
patent: 09-234604 (1997-09-01), None
patent: 2000-54007 (2000-02-01), None
patent: 2001-187431 (2001-07-01), None
patent: 3327080 (2002-07-01), None
patent: 3391231 (2003-01-01), None
patent: 2005-239472 (2005-09-01), None
patent: 2 034 937 (1995-05-01), None
Lin, Tze-Pin, et al., “Residual Stresses in Polycrystalline Diamond Compacts”, Journal of the American Ceramic Society, 1994, pp. 1562-1568, vol. 77, No. 6.
Front page of Published International Application No. PCT/JP2007/051825.
International Preliminary Report on Patentability issued in International Application No. PCT/JP2007/051825, mailed Aug. 13, 2009.
Japanese Office Action issued in Japanese Patent Application No. 2005-350794, mailed Jan. 5, 2010.

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