Getting the Right Impression

In hard anvil or steel-to-steel diecutting, knife edge damage is minimized in several ways. The obvious first step is to improve the design and fabrication of the platen press, to improve the precision of machined parts and assembly tolerances, and to reduce the overall size of the cutting surface to minimize variability. In this method the platen is set to the height of the knife plus a "gap" and variation is adjusted by adding compensation shims to the underside of individual knives.