Determination of forces in high speed blanking using FEM and experiments |
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Authors: | Soumya Subramonian Taylan Altan Craig Campbell Bogdan Ciocirlan |
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Affiliation: | 1. Center for Precision Forming, The Ohio State University, Columbus, OH 43210, USA;2. Tyco Electronics Corporation, A TE Connectivity Ltd. Company, 2901 Fulling Mill Road, Middletown, PA 17057, USA |
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Abstract: | The increasing demand for micro-formed and stamped parts such as connectors in the electronic industry is forcing manufacturers to push the speed limit of conventional press technologies to improve throughput. Designing dies/tooling for higher speeds and obtaining extended tool life requires a thorough understanding of the process. This paper discusses an experimental study of the interaction between punch, stripper plate and sheet material at various blanking velocities up to 1600 mm/s. The effect of velocity on punching force is also studied. A methodology to obtain high strain and strain rate dependent material flow stress data using blanking test and finite element modelling is presented. |
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Keywords: | High speed blanking Forces Finite element modelling (FEM) |
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