COMPOUND BODY AND METHOD OF MAKING THE SAME

摘要

Wear parts or cutting tools, in which the part being exposed to wear is essentially consisting of an extremely difficultly grindable material, but in which the manufacture of the detail demands considerable grinding operations can according to the invention be made better and cheaper by being formed of compound material which constitute core and cover of the detail. The core usually consists of high speed steel or tool steel while the cover consists of the difficultly ground material.