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Electrohydraulic extrusion of spherical bronze (CuSn6) micro samples (2018)

Langstädtler, L.; Pegel, H.; Schenck, C.; Stöbener, D.; Westerkamp, J. F.; Fischer, A.; Kuhfuß, B.

8th International Conference on High Speed Forming (ICHSF 2018), 13-16 May 2018 Ohio/USA

Abstract

Conventional material testing strategies are time and cost intensive. In this paper, a new method for contactless high-speed testing of spherical micro samples by an electrohydraulic punch is introduced. The punch transfers the punching force incrementally to extrude the samples stepwise in dies with high aspect ratios. The sample’s material behavior is characterized by analyzing the deformation behavior between the extrusion steps and at different forming stages.
Keywords:high-throughput material testing, bulk forming, micro parts