EFFECT ON OUTPUT CURRENT WAVEFORM ON THE PROPERTIES OF ALUMINUM WELDS.
Abstract
A review of recent studies to determine the effects of power-supply outputs current waveform on the properties of aluminum welds has been donducted. Current developments in power-supply technology have resulted in the design of welding power sources with unusual output characteristics that significantly affect the behavior of the processes used to weld aluminum. Much of the emphasis has been directed toward the development of alternating-current power sources with squarewave current outputs. Power units that permit variation in the duration of the straight- and reverse-polarity pulses have been designed with the goal of obtaining the benefits associated with the direct-curent welding process. Significant improvements in the metal-transfer characteristics of the gas metal-arc process haveresulted from the use of pulsed power sources. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 02, 1965
- Accession Number
- AD0467836
Entities
People
- H. E. Pattee
Organizations
- Battelle Memorial Institute