Wear reduction on cutting inserts by additional internal cooling of the cutting edge

The aim of this work is to demonstrate efficient machining of wire-arc-sprayed cylinder walls of engine blocks out of casted aluminium alloys. This special kind of machining application was realized by the use of thermally stabilized cutting inserts. The cutting inserts are modified with cooling channels by EDM machining in order to apply internal cooling of the tool. This results in less wear and therefore longer tool life.