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Fine Wire Weld Technique and Device

IP.com Disclosure Number: IPCOM000046013D
Original Publication Date: 1983-May-01
Included in the Prior Art Database: 2005-Feb-07
Document File: 2 page(s) / 63K

Publishing Venue

IBM

Related People

Lumbra, D: AUTHOR [+4]

Abstract

It is difficult to percussively arc weld thin wires since the pressure applied to the wire during the plunge tends to collapse the wire rather than maintain the proper pressure on the end thereof to form the necessary weld. The present welding fixture and technique allows the percussive arc welding of wires as fine as 0.003", and even finer.

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Fine Wire Weld Technique and Device

It is difficult to percussively arc weld thin wires since the pressure applied to the wire during the plunge tends to collapse the wire rather than maintain the proper pressure on the end thereof to form the necessary weld. The present welding fixture and technique allows the percussive arc welding of wires as fine as 0.003", and even finer.

As shown in Fig. 1 a conventional percussive arc welding fixture, such as manufactured by Superior Linear - Weld Electronic Equipment Corp., an affiliate of South London Electrical Equipment Co., Ltd., England, is provided which has a support beam 10 which is mounted on the arc welder. The beam 10 has supported thereon a pivotal jaw 12, which is operated by a handle 14 operating against a return spring 16. The jaw 12 coacts with a mating notch 18 formed in the beam 10. In conventional percussive arc welding techniques for thick wires, the wire is laid in the notch 18 with the jaw 12 open and then the jaw is released to clamp the wire in the notch. The welding device moves the jaw 10 in the direction indicated by the arrow, and when contact is made by the wire to the piece to which it is to be welded, the jaw and beam slide on the wire until the end of the travel of the beam is reached. However, if the wire is too thin, sliding does not take place, but rather the wire bends, preventing effective welding from occurring.

To weld small diameter wire, a wire mounting needle 20 is provided which ...