Welding is one of the special processes that differ from standard processes because they can be evaluated only through destructive tests.
Among these destructive tests, the main tests that can be made are metallographic analyses.
A metallographic analysis of the weld is carried out accompanied by a report with the visual analysis of the weld joint subjected to acid attack to which we add our considerations regarding the quality of the weld, its repeatability and the conformation of the post-process material.
In the photo, each sample refers to a welding test carried out in the laboratory and analyzed with metallographic analysis instruments