Chisel or single-point cutter for an excavating, road drilling or mining machine is hard tipped by introducing bulk hard material into a tip recess and filling the interstices with a binder

摘要

Hard tipping of a chisel involves introducing bulk hard material into a tip recess (11) and filling the interstices with a binder. An Independent claim is also included for a chisel tipped with hard material by the above process.