SUPER HIGH PRESSURE CUTTING TOOL SUPERIOR IN LIGHT LOAD INTERMITTENT CUTTING PERFORMANCE

摘要

PROBLEM TO BE SOLVED: To provide a high pressure cutting tool superior in a light load intermittent cutting performance. SOLUTION: A cutting blade piece composed of a diamond group or cBN group super high pressure sintered compact material 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.%, 1-20% Cu, 0.5-10% Ti, and the balance of Au and inevitable impurities.