For structural connections obtainted by melting the base material.
Include TIG / MIG technologies.

For structural joints

These are processes associated with the manufacturing of structural tubes.

The most commonly used materials are good weldability steel and aluminum alloys.

In some cases the supply of welding technologies with no filler material (basically TIG) are applied for those joints where good quality seams with no projections are required.

MIG welding with filler material is used where larger seams with greater resistance are allowed.

Finally when this phase is complementary to the brazing process technologies resistance welding is employed for its high level of productivity and simplicity of implementation.