Method and apparatus for automatic multi-run welding

Details Method and apparatus for automatic multi-run welding Method and apparatus for automatic multi-run welding

1991-12-30

1992-11-24

Shaw, Clifford C.

Electric heating

Metal heating

By arc

B23K 9127

Patent

active

051664950

ABSTRACT:
This invention relates to a method and apparatus for automatic multi-run welding of a joint such as a square butt joint, a V-type joint, or a U-type joint, etc. This invention incorporates a sensor which moves along the joint and which scans a number of points along portions of the joint. The points scanned are used to calculate the cross-sectional area of the portions of the joint and the cross-sectional areas are then used to determine welding parameters, such as weld speed and weld rod feed, for welding which is to be done in each of the joint portions. Thus, the joint is filled with weld material uniformly along its length despite deviations which may be inherent in the edges of the materials which are being welded.

REFERENCES:
patent: 4491718 (1985-01-01), Cook et al.
patent: 4493968 (1985-01-01), Brown
patent: 4563745 (1986-01-01), Panzeri
patent: 4590355 (1986-05-01), Nomura et al.
patent: 4591689 (1986-05-01), Brown et al.
patent: 4608481 (1986-08-01), Nomura et al.

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