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Prediction of optimum clearance in sheet metal blanking processes

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Abstract

The blanking process and structure of the blanked surface are influenced by both the tooling (clearance and tool geometry) and properties of the workpiece material (blank thickness, mechanical properties, microstructure, etc.). Therefore, for a given material, the clearance and tool geometry are the most important parameters. The objective of the present work is to develop a methodology to obtain the optimum punch-die clearance for a given sheet material by simulation of the blanking process. A damage model of the Lemaitre type is used in order to describe crack initiation and propagation into the sheet. A comparative study between numerical and experimental results shows good agreement.

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Authors and Affiliations

  1. ISTIA LASQUO , 62 Avenue Notre Dame du Lac, 49000, Angers, France

    R. Hambli

  2. ISTIA CPNI, Angers, France

    S. Richir, P. Crubleau & B. Taravel

Authors
  1. R. Hambli
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  2. S. Richir
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  3. P. Crubleau
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  4. B. Taravel
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Correspondence to R. Hambli.

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Hambli, R., Richir, S., Crubleau, P. et al. Prediction of optimum clearance in sheet metal blanking processes. Int J Adv Manuf Technol 22, 20–25 (2003). https://doi.org/10.1007/s00170-002-1437-5

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  • DOI: https://doi.org/10.1007/s00170-002-1437-5

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