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Oscillation overlaid shearing of sheet

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Abstract

One of the most frequently used sheet metal processing methods is shearing. While using the shearing method a cut edge is usually created which often clearly fails to meet the desired quality. The optimum cut edge quality is as rectangular and as burr-free as possible. Trials made at the IFUM showed, that the quality of cut edges can be improved by overlaying the movement of the punch with an oscillation. Through different test rows the mechanism and impact of oscillation on the shearing process are investigated. This paper reports about tensile and friction tests made on sheet metal with oscillation overlay, high speed cutting tests and test series with a new designed tool which allows stamping sheet metal also with an oscillation overlay. The test series show, that oscillation can have an effect on the tensile strength, friction and work hardening of sheet metal and as a result on the cutting force and the cut edge quality.

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Acknowledgment

The authors would like to express their gratitude to the “Deutsche Forschungsgesellschaft–DFG” for funding the research project presented in this paper.

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Authors and Affiliations

  1. Institute of Metal Forming and Metal-Forming Machines, IFUM, Leibniz Universität Hannover, 30823, Hannover, Germany

    Bernd-Arno Behrens, Edzard-Friedrich Schaeper & Marcus Kamp

Authors
  1. Bernd-Arno Behrens
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  2. Edzard-Friedrich Schaeper
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  3. Marcus Kamp
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Correspondence to Marcus Kamp.

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Behrens, BA., Schaeper, EF. & Kamp, M. Oscillation overlaid shearing of sheet. Prod. Eng. Res. Devel. 1, 19–24 (2007). https://doi.org/10.1007/s11740-007-0018-8

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  • DOI: https://doi.org/10.1007/s11740-007-0018-8

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