Title:
抵抗溶接機用C型ガンア―ムの製造方法
Document Type and Number:
Japanese Patent JP4087001
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To moderate a stress to a baseplate at the time of radius bending, and to reduce manufacturing cost with easy manufacturing by cutting off a side plate in a dimension near the peripheral length or above of an inner radiused surface when forming a corner part. SOLUTION: An arm stock consisting of a nonferrous light metal is formed into an extruded shape 1 whose cross-section is about rectangular by extrusion. As the basic form of a gun arm, this extruded shape consists of two side plates (a) and (b) parallel to longitudinal directions, a baseplate (c) almost orthogonal to a bottom end part between the side plates and a partition plate (d) parallel to the baseplate and almost orthogonal to the side plate. Prior to the almost right-angled radius bending of the extruded shape, the side plate is cut off at a bending corner part in a dimension near the peripheral length or above of an inner radiused surface, and a splicing plate is put on a corner opening part after the bending, then welding is performed.
Inventors:
Yoshio Sato
Application Number:
JP6791399A
Publication Date:
May 14, 2008
Filing Date:
March 15, 1999
Export Citation:
Assignee:
obara corporation
International Classes:
B23K11/11
Domestic Patent References:
| JP6063760A |
Attorney, Agent or Firm:
Mikio Nishimura