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1. (WO2018121631) CUTTER AND MANUFACTURING METHOD FOR SAME

Pub. No.:    WO/2018/121631    International Application No.:    PCT/CN2017/119154
Publication Date: Fri Jul 06 01:59:59 CEST 2018 International Filing Date: Thu Dec 28 00:59:59 CET 2017
IPC: B23C 5/10
B23P 15/34
Applicants: SHANGHAI JINGREN LASER TECHNOLOGY CO., LTD.
上海精韧激光科技有限公司
Inventors: SUN, Sirui
孙思叡
Title: CUTTER AND MANUFACTURING METHOD FOR SAME
Abstract:
Disclosed are a cutter and a manufacturing method for the cutter, the cutter comprising a handle and a cutting portion, wherein the cutting portion comprises a base section (200) and a blade section (100), the blade section (100) is fixed to the base section (200), the blade section (100) comprises at least two bent parts or one arc curved part, and one of the orthographic projection planes of the blade section (100) comprises a first rim (110) and a second rim (120). The distance between the first rim (110) and the second rim (120) at various points is 0.1mm to 5.0mm. The cutter can avoid sharp changes in the sectional area of various sections in blade lines, and in turn reduce damage, such as breakages and cracks, to material because a deformational stress on the blade of hard material due to welding is released intensively at the points where the sectional area of the hard material changes sharply, and can also save more than 30% of the hard material so that more cutting portions can be manufactured from hard material of the same area, thus increasing the utilization of the hard material.