Controlled flow of displaced material in self-pierce fastening

Details Controlled flow of displaced material in self-pierce fastening Controlled flow of displaced material in self-pierce fastening

2005-04-26

2005-04-26

Hong, John C. (Department: 3726)

Metal working

Method of mechanical manufacture

Assembling or joining

C029S428000, C029S525010

Reexamination Certificate

active

06883223

ABSTRACT:
A self-piercing tubular fastener (13) is applied to a workpiece (9, 11) by means of a setting die (1) which is formed with a radially inner cavity (17) and a radially outer cavity (5) surrounding the radially inner cavity such that a first part of the material displaced as the fastener (13) penetrates the workpiece flows into the radially inner cavity in the setting die whilst a second part of the displaced material flows into the radially outer cavity.

REFERENCES:
patent: 4389766 (1983-06-01), Capuano
patent: 4610072 (1986-09-01), Muller
patent: 4711021 (1987-12-01), Muller
patent: 2314794 (1998-01-01), None

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