The autogenous welding process by pressure is performed without filler material.
It generates welding points on the perimeter of the pieces to be joined without creating a welding bead (that is, a continuous weld with no interruptions), but realizing multiple points with more or less regular distances between them.
+ Rules for the application of the principle:
- Butt resistance welding
- Tack welding
- Projection welding
- Flash welding