It was very difficult to become a production engineer, it's a big struggle that you can't win alone, along the way I had a lot of help from some colleagues, teachers and especially my wife Fabiane A. do N. Bristotti, who helps me to this day. In this work, I've come to pass on a little of my experience with the welding process, which I had the honour of presenting to an examining board, and having the success of completing my degree, I hope that this work can help many others who are in search of knowledge in the welding area.