Title:
BAR STOCK AND CUTTING TOOL
Document Type and Number:
WIPO Patent Application WO/2017/057266
Kind Code:
A1
Abstract:
An elongated bar stock made of a cemented carbide containing tungsten carbide (WC) particles and cobalt (Co) and comprising a first edge and a second edge along the longitudinal direction, wherein the first edge has a first center portion positioned in the center in the width direction, and the second edge has a second center portion positioned in the center in the width direction. The Co content in the first center portion is less than the Co content in the second center portion, and for the measurement of an average kernel average misorientation (KAM) for WC particles measured with the electron backscatter diffraction (EBSD) method, the average KAM value in the first center portion is less than the average KAM value in the second center portion.
Inventors:
YAMAKAWA TAKASHI (JP)
MATSUSHITA SHIGERU (JP)
MATSUSHITA SHIGERU (JP)
Application Number:
PCT/JP2016/078251
Publication Date:
April 06, 2017
Filing Date:
September 26, 2016
Export Citation:
Assignee:
KYOCERA CORP (JP)
International Classes:
B23B51/00; B23C5/16; C22C29/08
Foreign References:
| JP2004114202A | 2004-04-15 | |||
| JP2015101747A | 2015-06-04 | |||
| JPS62218010A | 1987-09-25 |
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