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Measurement of shape error for the optimal blank design of stamped part with 3 dimensional contour lines

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Abstract

After a short review of iterative optimal blank method, a new method of measuring the shape error for stamped parts with 3D contour lines, is an essential component of the optimal blank design. When the contour line of the target shape does not exist in the plane, but exists in the 3D space, especially when the shape of the target contour line is very complicated as in the real automotive parts, the measurement of the shape error really matters. In the study, a method of shape error measurement based on the minimum distance is suggested as an evolution of the radius vector method. With the proposed method, the optimal blank shape of a real automotive part has been found in comparison with the results of the radius vector method. Through the investigation, the current method is found to resolve the problems of the radius vector method.

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Authors and Affiliations

  1. School of Mechanical Engineering, Yeungnam University, 280, Daehak-ro, Gyeongsan-si, Gyeongsangbuk-do, 38541, South Korea

    Hyun Bo Shim

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  1. Hyun Bo Shim
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Correspondence to Hyun Bo Shim.

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Shim, H.B. Measurement of shape error for the optimal blank design of stamped part with 3 dimensional contour lines. Int. J. Precis. Eng. Manuf. 16, 2665–2672 (2015). https://doi.org/10.1007/s12541-015-0341-5

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  • DOI: https://doi.org/10.1007/s12541-015-0341-5

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