| 摘要 |
An abrasive body for machining a workpiece including an abrasive compact comprising a mass of abrasive particles such as diamond and cubic boron nitride, present in an amount of at least 70 percent by volume of the compact, bonded into a hard conglomerate; support means covering more than 50 percent of the surface of the compact and bonded to the compact; and the compact presenting a formation, salient in relation to the support means, capable of machining the workpiece. Preferred configurations for the body are those in which the compact is sandwiched between two supports and a cylinder of compact inside a supporting sleeve. |
