Thermal Rigidity Of Machine Tools. Physical Fundamentals. Evaluation and Control. Part 2. Thermal Rigidity – Engineering Basis for Assessment and Management

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Abstract

Basic principles of rigidity estimations and their description in physical processes of elastic deformation as an important element to be considered in design of metal-cutting machines are
discussed in terms of requirements to machine tools accuracy and precision. Besides, influence on the machine tool thermal factors which also lead to temperature errors and cause changes in accuracy of the machine tool are considered.

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About the authors

А. P. Kuznetsov

МГТУ «Станкин»

Author for correspondence.
Email: journal@electronics.ru

доктор технических наук, профессор кафедры станков

Russian Federation

References

  1. Кузнецов А. П. Тепловые процессы в металлорежущих станках. М.: ТЕХНОСФЕРА, 2019. 488 с.
  2. Кузнецов А. П. Тепловой режим металлорежущих станков. М.: МГТУ «Станкин», Янус – К, 2013. 480 с.
  3. Kuznetsov A. P., Koriath H.-J. Thermal stiffness – a key accuracy indicator of the machine tools. MM Science Journal, 2021,| Special Issue on ICTIMT2021. PP. 4548–4555.

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2. Fig. 8. Coordinate thermoelastic structures of metal-cutting machine tools (a); generalized thermophysical structure of a metal-cutting machine tool (b)

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3. Fig. 9. Typical normalized patterns of changes in average temperatures (1-3 types) (a) and temperature deformations (1-8 types) of metal-cutting machine tools (b)

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4. Figure 10. Dependences of machine temperature on its thermal stiffness

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Copyright (c) 2023 Kuznetsov А.P.