Title:
穴加工方法及び穴加工工具
Document Type and Number:
Japanese Patent JP5675415
Kind Code:
B2
Abstract:
The present invention provides a hole drilling process and a drilling tool. The hole drilling process is for drilling a hole on a supported tube sheet (45) by using a first drilling tool (63a) that can drill a hole with a diameter smaller than that of a mounting hole (60) that is to become a target hole, and a second drilling tool (63b) that can drill a hole with a diameter equal to the diameter of the target hole, the process including: a temporary hole drilling step in which a temporary hole (60A) with a predetermined depth set beforehand is drilled by moving the first drilling tool (63a) to a drilled position set beforehand; a hole measuring step in which a distance (S) between an existing mounting hole (60) and the temporary hole (60A); a drilled position correcting step in which the drilled position is corrected based upon the distance (S) between the mounting hole (60) and the temporary hole (60A); and a target hole drilling step in which the target hole is drilled by moving the second drilling tool (63b) to the corrected drilled position.
Inventors:
霞流 祥剛
岡本 茂
佐々木 裕一
岡本 茂
佐々木 裕一
Application Number:
JP2011031383A
Publication Date:
February 25, 2015
Filing Date:
February 16, 2011
Export Citation:
Assignee:
三菱重工業株式会社
International Classes:
B23B39/08; B23B35/00
Attorney, Agent or Firm:
Hiroaki Sakai
Jun Takamura
Jun Takamura