Highly Efficient Machining of Corner Parts Using Five-Axis and Six-Axis Control

Abstract

Simultaneous 6-axis control machining with a non-rotational tool, which can create sharp corner shapes, is not necessarily efficient due to the small depth of cut and the low feed speed. Though the application of simultaneous 5-axis control machining with rotational tools is advantageous in terms of the machining efficiency, the cutting remaining peculiar to the rotational tool take place near the corner part. Therefore, using two machining methods together enables the efficient machining of sharp corner shapes. In the previous paper, we showed the high efficiency of our original machining method of character line using 5-axis and 6-axis control. As the industrial products have various kinds of the corner shape pattern besides the character line, however, the proposed machining method could not cope with all corner patterns. This paper describes the classification of corner shapes at the end of the character line and the generation method of cutting point data for machining of all patterns using 5-axis and 6-axis control.