Drawing is a metalworking process which uses tensile forces to stretch metal. For wire, bar, and, tube drawing the starting stock is drawn through a die to reduce its diameter and increase its length. Drawing is usually done at room temperature, thus classified a cold working process, however it may be performed at elevated temperatures to hot work large wires, rods or hollow sections in order to reduce forces. Usually the die is mounted on a draw bench and contains a lead angle to steer the part through the die. Another option is for the workpiece to be reduced or pointed. to get the end through the die. Steels, copper alloys, and aluminium alloys are common materials that are drawn.
The Gayston corporation uses mostly tube drawing as it draws impacted parts to decrease the diameter, improve surface finish and improve dimensional accuracy. A mandrel may or may not be used depending on the specific process used. Watch a draw in action.
