Lubrication and Cooling
Lubricants are used to reduce friction between the working material and the punch and die. They also aid in removing the part from the punch. Some examples of lubricants used in drawing operations are heavy-duty emulsions, phosphates, white lead, and wax films. Plastic films covering both sides of the part while used with a lubricant will leave the part with a fine surface.
Read more about this topic: Deep Drawing
Famous quotes containing the word cooling:
“her in her cooling planet
Revere; do not presume to think her wasted.”
—William Empson (1906–1984)