How to establish the dimensional deviations of workpieces:Take a number of tacked workpieces of
different shifts an establish the true dimensional deviations of the workpieces. This is an essential information for the system supplier and the design of the tooling
Analyse the key weld joints for location and gaps. Document potential problem areas with respect to repeatability of the key weld joints.
To achieve a good looking welding
seam, make sure that the parts to be joined always have the same gap. If the gap is changing (say on one workpiece - no gap - and the next workpiece 5 mm) the seam will either have an
overfill or underfill). Sensory equipment (Laser Sensor) to compensate for these deviations are an additional investment and increase the cycle time due to additional searching
routines.
