Device having expandable mandrel for making nuclear fuel element

Details Device having expandable mandrel for making nuclear fuel element Device having expandable mandrel for making nuclear fuel element

1981-06-08

1984-12-11

Ramsey, Kenneth J.

Metal fusion bonding

With means to cool work or product

228 49R, 228 50, 72392, 269 25, B23K 3704

Patent

active

044873565

ABSTRACT:
A device for manufacturing containers for storing nuclear materials. The purpose of the device is to maintain angular sheet metals in the precise position required during the welding operation which is performed along the outer edges of their flange portions. The device includes a core, a thrust bearing and a counter-pressure bearing. The core is sub-divided into two separate core portions. Spring means tend to draw the core portions toward each other. Fluid operated cylinder-piston units tend to separate the core portions against the action of said spring means. Adjustment screw means provided with abutment means and screwed into one of said core portions project into the other of said core portions with the abutment means thereof. The second core portion has abutment means cooperating with the abutment means on said adjustment screw means.

REFERENCES:
patent: 387659 (1888-08-01), Saunders
patent: 1546250 (1925-07-01), Phillips
patent: 2383314 (1945-08-01), Hubbard
patent: 3640116 (1972-02-01), Hellman
Welding and Metal Fabrication, Sep. 1982, p. 331.

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