An experimental study of cutting tool temperature distributions generated during orthogonal machining.

摘要

High temperatures in the cutting zone of a machining process increase cutting tool wear, which reduce cuffing tool life, decrease part quality and adversely influence the economics of machining. Although theoretical models have been constructed to provide mechanical and thermal data to determine cutting tool life, experimental work has not yet provided accurate or sufficient temperature information for comparison with theoretical predictions. In this dissertation Digital infrared imaging is used to gather temperature data in the highly deformed region near a cutting tool edge. The data has proven more accurate and offers higher resolution than techniques that have been applied to orthogonal machining in the past. The testing involved machining with non-coated carbide cutting tools and an AISI 1025 steel work piece using typical industrial cutting speeds. Results from the tests are compared to a finite element simulation of the metal cutting process.