Abstract
The press working is widely used from the height of mass production and the economy for the processing of the steel board for the car. Because the problem named wear-out, burning in the press working coming in contact by the high side pressure of the metal, the coating film to the surface of the metal mold has been introduced as measures. However, Widely used of high tension steel occurs problems film is damaged and film detachment by more load to shear their steels. So the mechanism of the damage was clarified in this research by the stress analysis that used digital engineering like CAD and CAE. In addition, try to make reduction of stress in damage points by changes of shape design.
