The burning of two metal pieces joint its together is called welding. Like that, you should learn how to join manual metals together. Some examples are carbon steel, Stainless steel, Alloy steel, Coper nickel, Titanium, Inkonel, Duplex etc.. Once welding these metals it can’t be used again. Os to avoid such errors we take a Radio graphic test without any defects this welding can be done. There are many types of welding.

They are Tig welding, arc welding, Mig welding, plasma welding etc., they are used mostly in Oil & Gas, power plant, petrochemical refinery industries. That is why it is referred as the most popular one in the world. Among that only manual welding and auto welding are used by us Spot weld, Stitch weld, continue weld are most important. In this continue welding the X-Ray or Radio graphic test is taken. Such a special study is the X-Ray welding.