抄録
The relationship between L (tool overhang) and D (tool diameter) is critical for any machining operation. Especially, the larger L/D ratio makes chatter and vibratioa Therefore, the L/D ratio (nearly equal to static rigidity) of a cutting tool is conventionally used as a main criteria of processing. However, the latest cutting and holding tools, have the complicated taper form aiming at securing high static rigidity. Then, in order to compute the static rigidity value of the tooling which consists of them, "rigidity estimation software" was developed newly. In this paper, the cutting test was performed using the tooling based on the calculation result of this software, and the validity of the processing criteria by L/D was verified.
