What are the different welding positions?

Why do we need different welding positions? How many different positions are there? –Flat (PA) –Angle (PB) –Horizontal (PC) –Vertical (Could be ascending or descending) –Overhead (PE) What more do we need to know about the four different welding positions? Flat Position: Angle Position: Horizontal Position: Vertical Position: Overhead Position: Application limits of the different…