Welding defects detecting and motor vehicle parts selecting method for use on parts production line, involves acquiring data during welding parts, processing data to deduce Boolean variable, and determining welding defect from variable

摘要

The method involves acquiring data at the level of a welding arc or more near to the welding arc, during welding parts of a motor vehicle. The data is chosen from a group formed by a voltage (U), intensity (I), wire speed (Vf), welding speed (Vs), gas pressure (Pgas) or gas rate (Dgas). The acquired data is processed for deducing a Boolean variable, and welding defect is determined from the Boolean variable. Independent claims are also included for the following: (A) an installation for automatically detecting welding defects (B) a welded parts production line.