Numerical Simulation and Experiments of Precision Bar Cutting Based on High Speed and Restrained State

摘要

According to the disadvantages of conventional bar cutting technology such as low cutting speed, inferior section quality, high processing cost and so on, a kind of novel precision bar cutting technology has been proposed, the cutting mechanism has also been analyzed. Finite element numerical simulation of the bar cutting process under different working conditions has been carried out with DEFORM. The stress and strain field at different cutting speed and the variation curve of the cutting force and appropriate cutting parameters have been obtained. SEM analysis of the cutting surface showed that the FEM simulation result is correct and better cutting quality can be obtained with the developed bar cutting technology and equipment based on high speed and restrained state.