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首页> 外文期刊>Journal of Materials Research >Further experiments and modeling for microscale compression molding of metals at elevated temperatures
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Further experiments and modeling for microscale compression molding of metals at elevated temperatures

机译：在高温下对金属进行微型压缩成型的进一步实验和建模

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摘要

Replication of metallic high-aspect-ratio microscale structures (HARMS) by compression molding has been demonstrated recently. Molding replication of metallic HARMS can potentially lead to low-cost fabrication of a wide variety of metal-based microdevices. Understanding the mechanics of metal micromolding is critical for assessing the capabilities and limitations of this replication technique. This paper presents results of instrumented micromolding of Al. Measured molding response was rationalized with companion high-temperature tensile testing of Al using a simple mechanics model of the micromolding process. The present results suggest that resisting pressure on the mold insert during micromolding is governed primarily by the yield stress of the molded metal at the molding temperature and a frictional traction on the sides of the insert. The influence of strain rate is also considered.
机译：最近已经证明了通过压模法复制金属高纵横比微结构（HARMS）。金属HARMS的模制复制可能会导致低成本制造各种基于金属的微型设备。了解金属微成型的机理对于评估这种复制技术的功能和局限性至关重要。本文介绍了铝的仪器化微成型的结果。使用微成型工艺的简单力学模型，通过伴随的Al高温拉伸测试，合理地测量了成型响应。目前的结果表明，在微成型过程中，模具嵌件上的抵抗压力主要取决于模压温度下模压金属的屈服应力和嵌件侧面的摩擦力。还考虑了应变率的影响。

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