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1. (WO2018176743) BALL NOSE CUTTER

Pub. No.:    WO/2018/176743    International Application No.:    PCT/CN2017/102123
Publication Date: Fri Oct 05 01:59:59 CEST 2018 International Filing Date: Tue Sep 19 01:59:59 CEST 2017
IPC: B23C 5/10
Applicants: SHENZHEN XINGUOYU PRECISION TOOLS LTD
深圳市鑫国钰精密工具有限公司
Inventors: HUANG, Jing
黄静
HE, Yuliang
何于亮
Title: BALL NOSE CUTTER
Abstract:
A ball nose cutter (10), comprising a shank (11) made of a ceramic material and a cutting part (12). One end of the shank (11) is connected to the cutting part (12). The cutting part (12) comprises helical margins (121). Each margin (121) comprises a peripheral edge (102). A rake angle of the peripheral edge (102) is 4° to 6°. A first relief angle of the peripheral edge (102) is 11° to 13°. A second relief angle of the peripheral edge (102) is 24° to 26°. The ball nose cutter (10) has a high melting point, high hardness, and high wearability, and the service life of the ball nose cutter (10) is prolonged.