itle It has been stated that it is generally undesirable to allow temperatures to rise excessively in... Description    It has been stated that it is generally undesirable to allow temperatures to rise excessively in machining operations. Explain why. By the student. This is an open-ended problem with a large number of acceptable answers. The consequences of allowing temperatures to rise to high levels in cutting include: (a) Tool wear will be accelerated due to high temperatures. (b) High temperatures will cause dimensional changes in the workpiece, thus reducing dimensional accuracy. (c) Excessively high temperatures in the cutting zone may induce metallurgical changes and cause thermal damage to the machined surface, thus affecting surface integrity.

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Machining Processes and Machine Tools

Machining is represented as the process in which an excessive amount of substance is eliminated from the particular element in the form of pieces. In machining, cutting tools such as rotary tools, lathe, drill press, grinder, chop saw, welders, and many more are applied to get the desired shape. As compared to other manufacturing processes, machining is precise and versatile.