Method of attaching a fastener to a panel

Details Method of attaching a fastener to a panel Method of attaching a fastener to a panel

1983-06-14

1985-10-01

Moon, Charlie T.

Metal working

Method of mechanical manufacture

Assembling or joining

29512, 29793, 2924352, 227 55, 403242, 403283, 411107, 411179, 411386, B23P 1100

Patent

active

045437017

ABSTRACT:
A method of attaching a metal fastener, such as a stud-bolt, to a panel. The fastener includes a self-piercing annular projecting wall defining a recess having a bottom wall and an inner side wall defined by the annular wall. The method includes locating the fastener adjacent a panel with the self-piercing end portion facing the panel opposite a die member. The fastener is then forced toward the die member, such that the annular wall pierces a slug from the panel into the central recess and against the bottom wall. The die member simultaneously deforms the distal end of the annular wall outwardly and the pierced panel edge is deformed from the plane of the panel against the external surface of the annular wall, interlocking the panel and fastener.

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