Temperature and deformation measurements in transient metal cutting

摘要

Metal cutting is a thermomechanically coupled process in which plasticity induced heating and friction play a critical role. The objective of this work is to develop a methodology to understand and quantify this coupling. Temperatures of the workpiece and the chip during transient cutting processes are measured using a linear array of 16 InSb infrared detectors with 200 ns rise time and 27 mum spatial resolution. Three different materials, 1018 CR steel, A16061-T6 and Ti-6AI-4V, are tested at a cutting speed of 4.3 m s(-1). A grid method is used to measure deformations during the above set of experiments. Measured values of temperature and deformation are compared to results of finite element simulations of the experiments. [References: 28]