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Stretches and pulls flat sheet metal into a three-dimensional hollow shape (like a soda can or kitchen sink). Assembly Methods
Leads to large burrs, heavy deformation, and distorted part edges.
= Total length of the cut perimeter (e.g., circumference of a circle or perimeter of a square). = Thickness of the sheet metal. Sscap S sub s = Shear strength of the specific material being cut. 5. Material Selection for Die Construction
D. Eugene Ostergaard, under the direction of the National Tool, Die & Precision Machining Association's Training Manual Committee, crafted this book to bridge the gap between theory and practical application. It was never intended to be a sales brochure, but a true training manual. The goal was to provide apprentice and journeyman die-makers with a thorough knowledge of the basic details and techniques of die theory and practice.
Find the PDF for quick reference on your phone or tablet, but buy the physical spiral-bound edition (if available) for your shop desk. Keep it greasy. Let it be your mentor.