3D Modelling and FEM Analysis on Metal Coin Edge Punching Error
10.15660/AUOFMTE.2021-1.3588
C C Gavrila, M T Lates
cgavrila@unitbv.ro
Volume XXX, 2021/1
Minting metal coin, mean to impress a given relief model on both coin faces and also on the edge. Due to the high striking pressure, the round blank material is forced to fill the inner space between dies. In the past, for less coin value, the coin edge remained cylindrical, without any inscription. Following the increased coin value, it was introduced a security feature against forgery; on the coin edge model could be toothed or inscribed with relief or incuse text logo.
ISSN 1583-0691, CNCSIS "Clasa B+"