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Use of Rectified Welding Current

IP.com Disclosure Number: IPCOM000094798D
Original Publication Date: 1965-Jun-01
Included in the Prior Art Database: 2005-Mar-06
Document File: 2 page(s) / 28K

Publishing Venue

IBM

Related People

Brunstetter, DR: AUTHOR [+2]

Abstract

To prevent thermal damage to miniaturized components while resistance welding them by capacitor discharge techniques, conventional welding apparatus is modified by placing a rectifier in series with the load. The normal current versus time curve for the capacitor discharge welding power supply is modified, by use of the rectifier, to eliminate period B of the curve.

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Use of Rectified Welding Current

To prevent thermal damage to miniaturized components while resistance welding them by capacitor discharge techniques, conventional welding apparatus is modified by placing a rectifier in series with the load. The normal current versus time curve for the capacitor discharge welding power supply is modified, by use of the rectifier, to eliminate period B of the curve.

Since welding is accomplished at the high current peak A, any current which might now during period B contributes nothing to the weld and can thermally damage component parts of the assembly being welded.

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