RESEARCH OF STRENGTHENED PLOUGH POINT BY PLASMA TRANFERRED ARC WELDING

Experiment based on strengthened plough point which produced from boron micro-alloyed steel. Cutting edge and front surface of plough point covered by plasma transferred arc welding (PTAW). This welding method creates relatively low thermal treatment of plough point steel and welded layer content has high tungsten carbide concentration which creates high wear resistance of working surface and cutting edge. This strengthening process increased working time of plough parts.