Profile die design by pressure balancing and cross flow minimization

A strategy for the design of profile dies has been created based upon the assumption that there is no cross flow at all. This is referred to as the Avoid Cross Flow Strategy. In this approach the material flow through a series of cross sections (perpendicular to the machine direction) taken through the die is determined. Each cross section is then subdivided into a number of segments. The geometry of each cross section is then adjusted so that …