SIMULATION STUDY TO VERIFY THE EFFECT OF CUTTING PARAMETERS ON CHIP SHINKEGE COEFICIENT DURING MACHINING PROCESS OF ALUMINUM ALLOY

Abstract

This paper predicted the relationship between chip shrinkage coefficient and cutting parameters such as cutting speed, uncut chip thickness in a cutting process of A6061 aluminum alloy. The chip shrinkage coefficient was determined through simulation using finite element method. The commercial software Abaqus/Explicit is employed for simulation of the cutting process of A6061 alumium alloy based on the Bao-Wierzbicki fracture model. Then, the least square method was used to derive the relationship between chip shrinkage coefficient and cutting force. The above-mentioned relationship is believed to be useful in determination of optimal cutting conditions in high-speed machining.