CBN sintered body cutting tool with excellent toughness

CBN sintered body cutting tool with excellent toughness

  • CN 103,304,240 A
  • Filed: 03/04/2013
  • Published: 09/18/2013
  • Est. Priority Date: 03/08/2012
  • Status: Active Grant
First Claim
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1. cubic boron nitride sintered compact cutting tool, its will comprise cubic boron nitride with in conjunction with mutually sintered compact as tool base, it is characterized in that,From the crystal grain boundary of described cubic boron nitride to exist with interior zone in conjunction with phase direction 100nm in conjunction with phase constitution, consisted of by the one kind or two or more and inevitable impurity in nitride, boride, oxide compound and their sosoloid more than 2 kinds of the nitride that is selected from Ti, carbide, carbonitride, boride, Al, and be the micro organization of 10~

  • 80nm for volume mean diameter MV.

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