Abstract
5-axis control machining can realize high performance machining by considering the relative attitude between a tool and a workpiece. Thus, it enables to avoid the abnormal tool wear and the deterioration of machined surface quality. The influence that the tool attitude gives the machined surface has been investigated by some researchers, and the tool attitude to obtain good surface quality has been already proposed in previous studies. On the other hand, the tool attitude in 5-axis control machining cannot but change inevitably with the rotational axis motion, while keeping the relative attitude constant. The influence of not only the tool attitude to the machined surface but also the variation in tool attitude should be evaluated to obtain good surface quality, based on 5-axis control machining experiments. The study deals with the proposal of an evaluation formula by considering the influence of both the tool attitude and the variation in tool attitude. It is experimentally recognized that the devised CAM system can generate appropriate 5-axis control tool paths for finish machining by utilizing the evaluation formula.
