COMPUTATIONAL ASPECTS OF TRIBOLOGY IN METAL MACHINING

The present paper reviews tribological phenomena in metal machining fr om computational aspects. Emphasis is laid on the interaction between the mechanical aspects of tribology and the characteristics of the cut ting process. Firstly, the fundamentals of the mechanics and physics o f cutting processes are outlined. This is extended to friction and lub rication at the tool-workpiece interface and tool wear. On the basis o f this quantitative knowledge, the interaction of tribology with a cut ting process is demonstrated by means of computer simulation including machinability of free-cutting steels, cutting fluid action and predic tion of tool wear. Finally, concluding remarks are devoted to the inte raction of tribology with wider aspects of cutting towards the goal of better machining'.