Study on wear resistance of micro-pits texture on turning surface

Abstract

Cutting tools with surface micro-textures can effectively improve the wear resistance of the tool and improve cutting conditions. The effects of average output power on the morphology and quality of the micro-textures were analyzed by laser processing technology. The micro-pit diameter was 35μm, 30μm, 25μm, 20μm and non-woven tool on the wear resistance of tool was evaluated. The micro-texture performance was evaluated from tool wear length, width and machined surface roughness. The results show that micro-pore diameter and pit depth increase with increase of laser power. The diameter of the micro-pit has a certain influence on the wear resistance of tool. With decrease of the diameter, the surface roughness of Ti6Al4V alloy is decreasing. When the diameter is less than 25μm, the wear resistance of the tool is weakened and the surface roughness of Ti6Al4V alloy is increasing. Micro-pit texture plays an active role in the friction contact state between blade and chip, adhesion resistance, wear resistance, resistance reduction, storage chip and so on.