難削材加工に適応可能な従動式ロータリミーリング工具の開発

抄録

In order to improve milling performance of difficult-to-cut materials, a unique milling cutter with SPRT (Self-Propelled-Rotary-Tool) was developed. Use of slide bearings enables a compact SPRT mechanism, while influence of bearing friction becomes not negligible. To attain self-revolution of a circular insert regardless of the bearing friction, the cutter geometry was optimized. Through face milling experiments of Inconel 718, superior tool wear resistance was verified as compared to the conventional milling without insert rotation. Analytical result of the measured cutting forces also indicated interesting phenomena in SPRT milling.