Patents Assigned to GREEN TOOL CO., LTD.
  • Reusing method of end mill
    Patent number: 10688569
    Abstract: A reusing method of an end mill involves machining a base material of an end mill in advance so as to have coaxiality equal accuracy to coaxiality for a cutting part, and when the cutting part is worn out, cutting off of the cutting part and machining a new cutting part on a shank part while a part of outer peripheral surface of the shank part is left as margin without cutting. The new cutting part has accuracy of coaxiality and an outer diameter identical to those of the cutting part.
    Type: Grant
    Filed: January 23, 2017
    Date of Patent: June 23, 2020
    Assignee: GREEN TOOL CO., LTD.
    Inventors: Masayoshi Fujiwara, Mitsuhiro Toda