ロボットによるアルミニウム合金押出材の高速溝加工 High-Speed cutting for extruded aluminum alloys using robot
This study is described the cutting method using an articulated robot that is the new machining for extruded aluminum alloys. The characteristics of this method are using the small diameter of endmill which aims to reduce the cutting force in order to compensate completely the low stiffness of articulated robot, and using the high-speed spindle to improve the machining efficiency. The behavior of super high-speed rotational cutting for extruded aluminum alloys is still unclear. In this paper, the basic cutting experiments and the structural analysis were done. It was proved the high frequency vibration proper to high-speed cutting had a close relation to the stiffness (natural frequency) of machine tools and workpieces, and great affected the cutting force and the cutting surface. The articulated robot was low stiffness, so there was few effect on the high frequency vibration in cutting, and the cutting force decreased 50~70% in comparison with the fluting machine. Consequently, it was understood the cutting method using an articulated robot was effective for the improvement of high-speed cutting.
軽金属 48(12), 603-607, 1998-12-30
The Japan Institute of Light Metals