Heat and Temperatures in Machining: Effects and Significance

Abstract

Heat generated in machining is significant to study, as number of technical and economic problems has root into it. The high temperatures on cutting tool needs better understanding of contact processes at tool-chip ,tool-workpiece interfaces. The contact length at tool-chip interface is significant to study as it governs the heat moving to the tool as well as many tribological conditions like stresses, tool wear. Understanding of Tool-workpiece interface is significant as it affects the heat moving to workpiece, tool, chip as well as tool flank wear and major machined surface characteristics. Non-sliding type tool wear mechanisms which are highly sensitive to temperature changes are important to study. The latest trends of using High Speed Machining, Dry and Near Dry Machining, Finish hard turning results in more heat generation demanding significant understanding of effect of heat generated and temperatures.