Testing of wear properties of inserts made from semi-solid processed experimental steel

Abstract To reduce the cost of manufacturing tools, which are commonly made from powder steels, high-alloy tool steel in form an ingot was cast. Conventional casting allows better use recycled materials and overall reduction material production costs. This experimental then processed a semi-solid state to remove unsuitable structure obtain desired functional properties. In case it is primarily sufficient toughness abrasion resistance. determine wear resistance steel, replaceable inserts for machining tests were made. The prepared by electro-erosive machining. During testing, geometry insert optimized achieve good chip evacuation other cutting Wear measured using digital microscope at same time, roughness workpiece measured. For comparison, corresponding chemical composition also produced, has commercial title Böhler K390 Microclean. heat-treated according manufacturer's recommendations. By comparing results obtained on cast commercially produced found that technology achieves three times lower cutting-edge during than steel.