We, at Mackrill Custom Knives, also use Damascus steel, which is made for us by top forgers and metalsmiths. There are many different techniques that bladesmiths and metalsmiths use to make Damascus knife blades. The following gives a basic idea on the process; Start with five pieces of steel, two high carbon pieces of steel and three medium carbon pieces of steel. Clean the impurities from the pieces of steel, then sandwich the two high carbon pieces between the medium carbon pieces. Arc weld them together at the end. The weld material must be removed after the first forge weld.