Westinghouse Sales Film Advantages of Ac Welding 47445 (1951)

Synopsis

Advantages of AC Welding, presented by Westinghouse and produced by B.K. Blake Productions, is a short film from 1951 promoting the advantages of AC output welding. The film opens with a shot of welding equipment ( 00:22 ) and men welding ( 01:14 ) as the narrator reviews the ability to weld all kinds of steel with AC welding. AC welding accommodates light and heavy fabrication, interior and exterior construction, and many other welding operation needs. According to the film, there are six main advantages to AC welding. The first is the virtual elimination of arc blow ( 02:48 ). The film shows the absence of arc blow while welding heavy plates together ( 03:38 ), and what arc blow looks like ( 04:04 ). The second is faster welding. A man welds a massive piece of steel ( 05:22 ). Someone using DC welding ( 06:02 ) must do a number of things that take up time. With an AC welder ( 06:37 ), jobs go much faster, such as at Lukenweld Inc. in Coatesville, PA ( 06:57 ) and Penn Boiler and Burner in Lancaster, PA ( 07:23 ), where AC welding is much faster than DC welding. The third reason is AC welding provides high weld quality ( 07:48 ). Smooth welds both internally and externally are achieved. Arc blow impairs welding, such as arc draft ( 08:33 ), leading to “plastered” weld metal. Slow motion arc pictures taken with a special camera at the Reed-Avery Company at Dundalk, MA ( 09:21 ) show arc with AC welding. The fourth is ease of operation—a modern AC welder simply needs to…

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Details

Running time

18 minutes

Collection

Ephemeral Films

Subjects on the Internet Archive

• Stock Footage