STUDY OF MECHANICAL AND TRIBOLICAL PROPERTIES OF DEEP CRYOTREATED M2 TOOL STEEL

Abstract

Cryogenic treatment has been acknowledged by some as means of extending tool life of many cutting tool materials, thus improving productivity significantly. However real mechanisms which guarantee better tool performance are still dubious. This implies the need of further investigations in order to control the technique more significantly. Studies on cryogenically treated HSS tools show microstructural changes in material that can influence tool lives. However little research has been done on other cutting tool materials. Performance of cryogenically treated tools largely depends upon the cutting conditions. Hence design of experiment was employed to study the effect of cutting parameters on tool wear and tool life equations were developed illustrating the significant factors that affect performance of cryogenically treated tools