Drawing is a cold plastic deformation process used to reduce the diameter of metal wires—especially copper—by pulling them through one or more dies. This technique enables the production of wires with controlled cross-sections, high dimensional accuracy, smooth surfaces, and excellent mechanical properties, making them ideal for electrical, electronic, and industrial applications.
During the drawing process, the material is subjected to significant mechanical stress and high friction between the wire and the die. Without proper lubrication, this friction can result in: