2. Welding training

2.1 Issues

We are faced here with two complex issues: welding and training.

The first comes directly from the field. Indeed, a professional welder possesses significant gestural and cognitive expertise, much of which is acquired through experience. The trainer is therefore an essential vector of information for the learner. Cognitive learning consists in assimilating the physical and chemical phenomena governing welding. This entails theoretical training, which is reinforced in the field by the trainer.

However, gestures are an essential part of the job. A trainer cannot easily pass on this expertise to a group of trainees (unless he/she guides their gestures individually). This implies a succession of trials and errors controlled...