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Stamping dies are the tools that shape and cut sheet metal parts. They are commonly developed using computer-aided design (CAD) software and analytical programs to create and prove-out highly accurate, unambiguous designs. These designs are then translated into stamping dies by skilled craftsmen, known as diemakers. Once these stamping dies are mounted into presses, sheet metal is fed to them to produce parts.
Part of the Fundamental Manufacturing Processes Video Series, this program will help you better understand how stamping dies operate. You will explore sheet metal deformation and formability, segments on dies and die functions, die lubrication, and stamping analysis.
The dies and die functions segment looks at cutting die operations and forming die operations. The cutting die operations include shearing, blanking, punching, and trimming. The forming die operations include drawing, bending, flanging, and hemming. Single- and multiple-station dies are also examined, and include compound dies, combination dies, progressive dies, and transfer dies.
The die lubrication segment details the various types of lubricants used in stamping operations, as well as the common application methods, such as manual application, drip, roller, spraying, and flooding.
The stamping analysis segment focuses on the use of computer software programs to create stamping designs that can be manufactured with certainty, while minimizing the lengthy process of die making. The use of circle grid analysis (CGA) to fine tune these die designs is also highlighted.
By Philip D Rufe, CMfgE
By Ahmad K Elshennawy, Gamal S Weheba, PhD