Welding method and apparatus suitable for forming links in jewel

Details Welding method and apparatus suitable for forming links in jewel Welding method and apparatus suitable for forming links in jewel

1981-12-22

1984-06-05

Envall, Jr., Roy N.

Electric heating

Metal heating

For bonding with pressure

219 8633, 219 8651, 219 8641, 74 8922, 74110, B23K 1100

Patent

active

044530722

ABSTRACT:
In a link forming apparatus, U-shaped links are fed into a forming station and closed by a forming anvil. Opposing electrodes are then pressed against each side of the closed link by means of a common belt drive which is in turn pneumatically driven. Each electrode is spring biased with respect to a carrier so that a predetermined spring force is applied to the link by the electrode during the welding operation. The first electrode to contact the link and apply a predetermined pressure triggers the welding current.

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Hughes Aircraft Company Catalog, "Hughes Production Equipment".

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