複合部材、及び複合部材の製造方法

Japanese Patent JP7101754

B2

A composite member includes: a substrate formed of a composite material containing a plurality of diamond grains and a metal phase that bonds the diamond grains; and a coating layer made of metal and coating at least a part of a surface of the substrate. The surface of the substrate includes a surface of the metal phase, and a protrusion formed of a part of at least one diamond grain of the diamond grains and protruding from the surface of the metal phase. In a plan view, the coating layer includes a metal coating portion coating the surface of the metal phase, and a grain coating portion coating the protrusion and not coating the surface of the metal phase. A ratio of a thickness of the grain coating portion to a thickness of the metal coating portion is equal to or less than 0.80. The coating layer has a surface roughness as an arithmetic mean roughness Ra of less than 2.0 µm.

JP2012506493	Polycrystalline diamond composite molded elements, tools for incorporating them, and methods for making them
WO/1996/036677	POLYCRYSTALLINE CUBIC BORON NITRIDE CUTTING TOOL

Kengo Goto
Tomoaki Ikeda
Hosoe Akihisa
Masanori Sugisawa
Fukuto Ishikawa
Hideaki Morikami

JP2020500382A

July 15, 2022

January 30, 2019

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Sumitomo Electric Industries, Ltd.
Allied Material Co., Ltd.

C22C26/00; C23C18/52; H01L23/36

JP2012117085A
JP2005184021A

Hiroshi Yamano

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