Basic Die Making Ostergaard Pdf !free! -

Ostergaard understood that theoretical die clearance and shear angles mean nothing if the toolmaker doesn't know how to heat-treat a dowel pin or fit a guide post. His work bridges the gap between the drafting table and the pressroom.

Furthermore, his chapters on (back taper) in die buttons are critical for high-speed stamping where parts tend to "volcano" or stick. basic die making ostergaard pdf