HIGH PERFORMANCE SUPER HIGH PRESSURE CUTTING TOOL OF BRAZING TYPE COMPOSED OF DIAMOND GROUP SUPER HIGH PRESSURE SINTERED COMPACT AND SUBSTRATE HARD METAL

摘要

PROBLEM TO BE SOLVED: To provide a high performance super high pressure cutting tool of a brazing type composed of a diamond group super high pressure sintered compact and a substrate hard metal. ;SOLUTION: A cutting blade piece composed of a diamond group high pressure sintered compact material containing 1-20 vol.% one or more kind of TiC, TiN, and TiCN is directly brazed to a cutting blade piece brazing part of a tool main body composed of a tungsten carbide group hard metal containing the tungsten carbide as a main component via a Au alloy brazing material having a composition containing, at wt.%, 20-40% Cu, 0.5-10% Ti, and the balance of Au and inevitable impurities.;COPYRIGHT: (C)2000,JPO