工具磨耗抑制を考えた5軸仕上げ加工

抄録

It is important to reduce the tool cost in terms of the rationalization of manufacture. On the supposition of 5-axis control machining of metal molds, it is planned to suppress the tool wear by moving the cutting position of ball-end mills. Based on this concept, the experiments are conducted by changing the tool axis inclination direction and the tool swing rate. The tool axis inclination direction is determined at every 45 degrees from the tool feed direction, that is, 8 types. The tool axis inclination angle is selected to be 30 degree from the tool axis in terms of the machined surface roughness with reference to the reported research result. The tool swing rate is appointed by degree per tool feed with the center point of 30 degrees moving from 15 to 45 degrees, taking account of the interference and down-cut operation. As a result, it is confirmed that there exists the appropriate tool axis direction and the tool swing rate, which allow the suppression of tool wear and the realization of good surface roughness.