Automatic orbital welding machine, and a welding process for pipes of a bundle of a heat exchanger
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United States of America Patent
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app pub date -
Mar 11, 2003
filing date -
Mar 11, 2002
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Abandoned
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Abstract
The present invention relates to an electric arc automatic orbital welding machine (3) for carrying out butting welding between pipes of a bundle (2) and a cylindrical body (1) in heat exchangers, in which a cam mechanism (5) receives a circular motion around an axis (9) therefrom and generates an axial reciprocating motion along the same axis (9) and orthogonal to the plane of rotation so that the torch (7) describes the same spatial path which coincides with the intersection line between the pipe segment (2) and the cylindrical body (1).
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