A blanking die cuts the outside perimeter of a part out of a strip of sheet metal. The piece that is punched out is the usable work piece (the "blank"), while the remaining strip is scrap metal. Piercing Dies
Releases the sheet metal from the punch after the cutting operation is complete. The Importance of Punch-to-Die Clearance basic die making ostergaard pdf
Progressive dies cost $10,000 to $50,000. A major crash destroys weeks of work. Ostergaard’s emphasis on teaches you how to inspect a die before it goes into the press. You will learn to spot: A blanking die cuts the outside perimeter of
Bringing the steel to its hardening temperature, then rapidly cooling it in oil, air, or water (depending on the steel grade) to transform its structure into brittle martensite. You will learn to spot: Bringing the steel
Ostergaard emphasizes that a die maker's job extends to repair. Common issues addressed include:
If you'd like to dive deeper into practical toolmaking and die design:
