Pressure Lubricated Deep Drawing : 1st Report, Conception of the Mechanism, Characteristics and Possibilities

Abstract

In the orthodox method of deep drawing, it is hardly possible to draw the blank with a drawing ratio far above 2.0. The authors deviced a new drawing method, in which using the ordinary solid tools a pressure lubricated condition with almost perfect fluid friction could be established over the die surface. By this method, we easily accomplished a drawing operation with the drawing ratio of 2.58. The mechanism, general characteristics and possibilities of the method are accounted for here.