Title:
TOOL AND COATED TOOL
Document Type and Number:
WIPO Patent Application WO/2017/094628
Kind Code:
A1
Abstract:
A tool in which at least a portion of a cutting blade comprises a sintered body containing cubic boron nitride, wherein: the sintered body integrally and inseparably has an internal area and a binder phase enrichment layer that is formed on the surface of at least a portion of the internal area; the internal area comprises 15 to 90% by volume of cubic boron nitride and 10% to 85% by volume of a mixture of inevitable impurities and a binder phase; the binder phase enrichment layer comprises 90 to 100% by volume of the mixture of the inevitable impurities and the binder phase and 0 to 10% by volume of cubic boron nitride; and the binder phase contains at least one selected from the group consisting of at least one element selected from the group consisting of Ti, Zr, Hf, V, Nb, Ta, Cr, Mo, W, Al, Co, Ni, and Si, and a compound of the element(s) and at least one element selected from the group consisting of C, N, O, and B.
Inventors:
HIRANO YUSUKE (JP)
FUKUSHIMA YUICHIRO (JP)
FUKUSHIMA YUICHIRO (JP)
Application Number:
PCT/JP2016/085049
Publication Date:
June 08, 2017
Filing Date:
November 25, 2016
Export Citation:
Assignee:
TUNGALOY CORP (JP)
International Classes:
C22C29/16; B23B27/14; B23B51/00; B23C5/16; B23D77/00; B23G5/06; C04B35/5831
Foreign References:
| JP2004204258A | 2004-07-22 | |||
| JP2004026555A | 2004-01-29 |
Attorney, Agent or Firm:
INABA, Yoshiyuki et al. (JP)
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