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Efficient workpiece clamping by indenting cone-shaped elements

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Abstract

Machining fixtures which utilize screw-or strap clamps are widely used in manufacturing. Typical for them is that the cutting forces are balanced by the friction forces which act on the contact surfaces (interfaces) between clamping elements (screw- or strap clamps) and workpiece. This paper analyses load capacity and compliance of these interfaces. In order to increase their load capacity and reduce compliance, a method is proposed which is based on indenting sharp cone-shaped clamping elements into workpiece material using appropriate surfaces which are not machined, and are not expected to satisfy any particular aesthetic demands (most often castings and forgings). The results of numerical simulations and experimental investigation reveal substantial advantages of the proposed clamping method, offering possibility for industrial application and further investigation.

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Authors and Affiliations

  1. Department for Production Engineering, Faculty of Engineering, University of Kragujevac, Sestre Janjic 6, Kragujevac, Serbia, 34 000

    Branko Tadic, Branislav Jeremic, Petar Todorovic, Uros Proso & Vesna Mandic

  2. Department for Production Engineering, Faculty of Technical Sciences, University of Novi Sad, Trg Dositeja Obradovica 6, Novi Sad, Serbia, 21 000

    Djordje Vukelic & Igor Budak

Authors
  1. Branko Tadic
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  2. Branislav Jeremic
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  3. Petar Todorovic
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  4. Djordje Vukelic
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  5. Uros Proso
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  6. Vesna Mandic
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  7. Igor Budak
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Correspondence to Djordje Vukelic.

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Tadic, B., Jeremic, B., Todorovic, P. et al. Efficient workpiece clamping by indenting cone-shaped elements. Int. J. Precis. Eng. Manuf. 13, 1725–1735 (2012). https://doi.org/10.1007/s12541-012-0227-8

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  • DOI: https://doi.org/10.1007/s12541-012-0227-8

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