Patent ID: 9308568
Filing Date: 2016-04-12
CPC Classification: B21D,B21K,B23P,H01L,Y10T

Claim Text:
1. A method for manufacturing a caulked assembly of a metallic plate body with a hollow or solid columnar body, the method comprising the steps of: providing, in the metallic plate body, a mounting hole for inserting and assembling the columnar body and forming a thick portion along an inner circumferential edge of the mounting hole; inserting the columnar body into the mounting hole of the metallic plate body to set the metallic plate body in an assembly position having no circumferential groove on an outer circumferential surface of the columnar body; and caulking for compressively pressing the thick portion from an axial direction of the columnar body to plastically deform the thick portion toward a center of the mounting hole to tighten and fix the thick portion to a position having no circumferential groove of the outer circumferential surface of the columnar body.