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Proceedings of the Thirteenth International Machine Tool Design and Research Conference pp 67–73Cite as

Calculating the Elastic and Plastic Components of Deflection of Joints Formed from Machined Surfaces with Flatness Errors

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Summary

Contributions to successive MTDR Conferences have stressed the need for knowledge of the behaviour of joints in machine tool structures. At the twelfth conference, the authors presented theories for calculating the elastic and plastic components of deflection of plane joints formed from machined surfaces1. In this paper these theories are extended to the more general case of joints formed from surfaces with flatness errors. Again, a mathematical expression of surface finish is applied to the calculation of elastic and plastic deflections and from these, values of initial deflection and elastic recovery can be made. Experimental results show that the method is valid within the limits of accuracy of the surface finish expression.

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References

  1. R. E. Schofield and R. H. Thornley. Calculating the elastic and plastic components of deflection of plane joints formed from machined surfaces. 12th. Int. MTDR Conference, Manchester, 1971 Macmillan, p. 89.

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  2. R. Connolly, R. E. Schofield and R. H. Thornley. The approach of machined surfaces with particular reference to their hardness. 8th Int. MTDR Conference, Manchester, 1967 Pergamon.

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  3. R. E. Reason. The bearing parameters of surface topography. Rank-Taylor-Hobson, 1964.

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  4. R. E. Schofield and R. H. Thornley. Mathematical expression of surface finish characteristics. Proc. Conference on Properties and Metrology of Surfaces I. Mech. E. Oxford, 1968.

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  5. R. H. Thornley, R. Connolly and F. Koenigs-Berger. The effect of flatness of joint faces upon the static stiffness of machine tool joints. Proc. I. Mech. E. Vol. 182 Part 1. No. 18 1967–68.

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  6. R. E. Schofield. Contribution to 5. Proc. I. Mech. E. Vol. 182 Part I No. 18 1967–68.

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Author information

Authors and Affiliations

  1. Department of Mechanical Engineering, Queen’s University of Belfast, UK

    R. E. Schofield

  2. Department of Production Engineering, University of Aston in Birmingham, UK

    R. H. Thornley

Authors
  1. R. E. Schofield
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  2. R. H. Thornley
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Editor information

Editors and Affiliations

  1. Department of Mechanical Engineering, University of Birmingham, UK

    S. A. Tobias (Chance Professor and Head of Department) (Chance Professor and Head of Department)

  2. University of Manchester Institute of Science and Technology, UK

    F. Koenigsberger (Professor of Machine Tool Engineering) (Professor of Machine Tool Engineering)

Copyright information

© 1973 Macmillan Publishers Limited

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Cite this chapter

Schofield, R.E., Thornley, R.H. (1973). Calculating the Elastic and Plastic Components of Deflection of Joints Formed from Machined Surfaces with Flatness Errors. In: Tobias, S.A., Koenigsberger, F. (eds) Proceedings of the Thirteenth International Machine Tool Design and Research Conference. Palgrave, London. https://doi.org/10.1007/978-1-349-01857-4_10

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  • DOI: https://doi.org/10.1007/978-1-349-01857-4_10

  • Publisher Name: Palgrave, London

  • Print ISBN: 978-1-349-01859-8

  • Online ISBN: 978-1-349-01857-4

  • eBook Packages: EngineeringEngineering (R0)

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