Patent ID: 8668421

Claim:
A device for manufacturing container bodies out of metal sheet comprising: a rounding apparatus, a conveying arrangement for conveying the container bodies, a calibration tool with a plurality of calibration rollers, a welding apparatus with adjustable welding current, a collection arrangement for collecting at least one disturbance variable having an influence on a welding seam quality during a manufacturing process, and a compensation arrangement for compensating for the influence of the at least one disturbance variable on the welding seam quality by means of at least one control variable, wherein the collection arrangement is adapted to collect the at least one disturbance variable, wherein the at least one disturbance variable comprises at least one of a geometry of an overlapping of an edge of the body blank or a size of the overlapping of the edge of the body blank, wherein the compensation arrangement is adapted to adjust the at least one control variable, and wherein the at least one control variable comprises at least one of a variation of the welding current or a distance between at least two welding spots.