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<p>The demand for 5-axis machine tools is increasing because of their ability to efficiently machine materials into complex shapes compared to 3-axis machine tools in a single setup. However, various machining accuracy issues are encountered because of the kinematic error caused by ambient temperature changes. The ambient temperature change in the working environment results in the temperature variation of the machine components. This causes thermally induced kinematic error in the machine tool. This study proposed a method to obtain a thermally induced kinematic error compensation model considering various temperature states. The kinematic error was identified using various tool center point (TCP) positions and updated using a thermal error model. The compensation value at the TCP was calculated with the updated kinematic error. The volumetric error of the machine tool in the various temperature states was reduced by the proposed method.</p>

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Thermally Induced Error Compensation of 5-Axis Machine Tools in the Environment with Temperature Fluctuation

  • 期刊论文

  • 发表日期：

    2025年5月16日

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  • Seungmin Jeong,
  • Changwon Oh,
  • Taesoo Jang,
  • Hee-Min Shin,
  • Gyuho Kim,
  • Byung-Kwon Min

摘要

The demand for 5-axis machine tools is increasing because of their ability to efficiently machine materials into complex shapes compared to 3-axis machine tools in a single setup. However, various machining accuracy issues are encountered because of the kinematic error caused by ambient temperature changes. The ambient temperature change in the working environment results in the temperature variation of the machine components. This causes thermally induced kinematic error in the machine tool. This study proposed a method to obtain a thermally induced kinematic error compensation model considering various temperature states. The kinematic error was identified using various tool center point (TCP) positions and updated using a thermal error model. The compensation value at the TCP was calculated with the updated kinematic error. The volumetric error of the machine tool in the various temperature states was reduced by the proposed method.