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Numerical and experimental analysis of coin minting

机译:硬币薄荷的数值和实验分析

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摘要

This paper describes a numerical and experimental route for application and validation of finite elements in coin minting based on an industrial case study. The numerical work encompasses virtual prototyping of the dies from three-dimensional models prepared by the sculptor and finite element simulation of the coin minting process. The experimental work comprised independent determination of the stress-strain curve of the disk material by means of stack-compression tests, verification of the force values provided by the industrial coin minting press and validation of the numerical estimates of the progressive filling of the relief coin features and of the force vs. die stroke evolution. Results show that finite elements can be successfully applied to predict material flow and filling of the intricate relief coin features as well as to estimate the required coin minting forces before fabricating the actual dies.
机译:本文介绍了基于工业案例研究的硬币铸造中有限元的应用和验证的数值和实验途径。数值作品包括由雕塑器制备的三维模型的模具的虚拟原型,以及硬币薄荷工艺的有限元模拟。实验性工作包括通过堆叠压缩试验的独立测定盘材料的应力 - 应变曲线,验证由工业硬币铸造压力机提供的力值和验证浮雕填充的渐进式填充的数值估计特征和力量与模具冲程演化。结果表明,有限元可以成功地应用于预测物质流动和填充复杂的浮雕硬币特征,以及在制造实际模具之前估计所需的硬币铸力。

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