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Thermal–Mechanical Coupling Analysis and Experimental Study on CNC Machine Tool Feed Mechanism

Authors
  • Liu, Shihao1
  • Lin, Mao1
  • 1 Hainan University, College of Mechanical and Electrical Engineering, Haikou, 570228, China , Haikou (China)
Type
Published Article
Journal
International Journal of Precision Engineering and Manufacturing
Publisher
Korean Society for Precision Engineering
Publication Date
May 13, 2019
Volume
20
Issue
6
Pages
993–1006
Identifiers
DOI: 10.1007/s12541-019-00069-1
Source
Springer Nature
Keywords
License
Yellow

Abstract

As the CNC machine tool feed mechanism is affected by joint action of heat and load during the working process, thermal–mechanical coupling analysis and experimental research on CNC machine tool feed mechanism are conducted. On the basis of exploring the thermal–mechanical coupling effect of CNC machine tool feed mechanism, a thermal–mechanical coupling dynamic analysis method is proposed through combining multi-step finite element simulation with temperature field experiment. According to the proposed method, the transient and steady-state simulation analysis on CNC machine tool feed mechanism are conducted and conclusions obtained are as follows, before the whole feed mechanism reaches thermal balance state, the thermal–mechanical coupling effect makes the deformation of the feed mechanism increase with the temperature rising. The correctness of the proposed thermal–mechanical coupling dynamic analysis method was verified by the contrastive analysis of the experiments. Therefore, in the process of CNC machine tool feed mechanism’s analysis and design, the influence of thermal–mechanical coupling effect on dynamic performance should be considered.

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