Metalworking: Bulk Forming
Coining is a closed-die forging operation in which all surfaces of the workpiece are confined or restrained, resulting in a well-defined imprint of the die on the workpiece. This article focuses on the coining equipment (hammers and presses), lubricants, and general and special die materials used in the coining process. It discusses the coinability of metals such as steels, copper, and composite metals. The article describes the control of dimensions, surface finishes, and weight of coined items. It concludes with a discussion on processing problems and solutions.
Coining, Metalworking: Bulk Forming, Vol 14A, ASM Handbook, Edited By S.L. Semiatin, ASM International, 2005, p 198–204, https://doi.org/10.31399/asm.hb.v14a.a0003987
Download citation file:
New Handbook: Volume 11B
Volume 11B serves as a reference and guide to help engineers determine the causes of failure in plastic components and make corrective adjustments through design and manufacturing modifications.