小径ボールエンドミル加工におけるリード角とびびり振動の関係評価

抄録

In machining of complex shaped parts, lead angle of ball end mill is sometimes changed to avoid interference with the machine tool. However, it often causes tool wear and chipping. In general, tool wear and chipping are increased rapidly when chatter vibration occurs. In this study, the relationship between the lead angle and the chatter stability in small-diameter ball end milling is evaluated both analytically and experimentally, and it is confirmed that the lead angle considerably affects the chatter stability.