Fine-blanking is a hybrid metal forming process that combines the technologies of stamping and cold extrusion. This article describes the three principal design features of the fine blanking process: the vee-ring, clearance between punch and die, and counterforce imposed by the ejector. It discusses the advantages and disadvantages of edge blanking and materials. The article reviews the classification of fine-blanking dies such as the moving-punch system and the fixed-punch system, and provides information on the mechanical and hydraulic fine-blanking presses.
T.C. Lee, C.Y. Tang, L.C. Chan, Fine-Edge Blanking, Metalworking: Sheet Forming, Vol 14B, ASM Handbook, Edited By S.L. Semiatin, ASM International, 2006, p 177–190, https://doi.org/10.31399/asm.hb.v14b.a0005110
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