The machining of variable cross-section scroll is complex and the machining accuracy is high,the geometric parameters of the tool need to be considered.The high-speed milling simulation of HT250 cast iron variable cross-section scroll is carried out to study the influence of tool geometric parameters on machining,and the variable cross-section scroll is machined through experiments.The mathematical model of variable cross-section scroll disk composed of three basic invo-lutes is constructed.The three-dimensional milling model and the simplified two-dimensional milling model are established.The effects of tool rake angle,rake angle and blunt circle radius on milling force and milling temperature are analyzed by ABAQUS,as well as the cloud diagram of milling stress and milling temperature distribution under different tool geometric parameters.The research on the influence of tool geometric parameters on the milling force and milling temperature of varia-ble cross-section scroll provides a basis and reference for selecting reasonable tool geometric parameters,so as to improve the machining accuracy of variable cross-section scroll.
关键词
刀具几何参数/HT250铸铁/变截面涡旋盘/铣削力/铣削温度
Key words
tool geometric parameters/HT250 cast iron/variable cross-section scroll/milling force/milling temperature
维普
万方数据