Cubic boron nitride base high pressure sintered material for cutting tool

Abstract

Abstract PURPOSE:To provide the titled material suitable for a cutting tool adapted to a hardly cut material, obtained by containing carbonitride of a metal belonging to the Group IVa, Va and VIa of the Periodic Table, carboboronitride of Al, a specific ferrous metal and a platinum group metal in cubic boron nitride in a specific ratio. CONSTITUTION:A material containing 10-60wt% one kind or more carbides and nitrids of a metal belonging to the group IVa and Va of the Periodic Table, carbide of a metal belonging to the group VIa and, further, a solid solution thereof, 1-30wt% one kind or more carbides, nitrides and borides of Al, 1- 10wt% Ni, Co or Fe and 1-10wt% one kind or more Pd, Pu or Rh and comprising the remainder 30-90vol% cubic boron nitride and inevitable impurities is prepared. From this material, an ultra-high pressure sintered material excellent in anti-wear property, toughness, welding resistance and heat shock resistance is obtained.

Inventors

• 👤 Fumihiro Ueda
• 👤 植田　文洋
• 👤 Kaoru Kawada
• 👤 川田　薫
• 👤 Kazuo Yamamoto
• 👤 和男 山本
• 👤 Kisho Miwa
• 👤 三輪　紀章
• 👤 Toshiki Ishimatsu
• 👤 石松　利基

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