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1. (WO2017154671) END MILL MACHINING DEVICE, CAM DEVICE, NC PROGRAM, AND MACHINING METHOD

Pub. No.:    WO/2017/154671    International Application No.:    PCT/JP2017/007811
Publication Date: Fri Sep 15 01:59:59 CEST 2017 International Filing Date: Wed Mar 01 00:59:59 CET 2017
IPC: B23C 3/00
B23C 5/10
B23Q 15/12
G05B 19/4093
Applicants: NATIONAL UNIVERSITY CORPORATION NAGOYA UNIVERSITY
国立大学法人名古屋大学
Inventors: HAYASAKA Takehiro
早坂健宏
FUJIMAKI Shunsuke
藤巻俊介
SHAMOTO Eiji
社本英二
Title: END MILL MACHINING DEVICE, CAM DEVICE, NC PROGRAM, AND MACHINING METHOD
Abstract:
[Problem] To provide an end mill machining device, a cam device, an NC program, and a machining method in which regeneration-type self-induced vibration and mode-coupling-type self-induced vibration are suppressed. [Solution] This end mill machining device 100 has an end mill 10, and a control unit 150 for controlling the end mill 10. The ratio of the protrusion length of the end mill 10 with respect to the diameter of the end mill 10 is 5-50. The end mill 10 has a variable-pitch equal lead or a variable lead. The control unit 150 controls the end mill 10 such that the contact angle between the end mill 10 and a work material M1 during machining is equal to or less than a critical contact angle θlim.