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Innovative Approaches to Sustainable Computer Numeric Control Machining: A Machine Learning Perspective on Energy Efficiency

Author

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  • Indrawan Nugrahanto

    (Department of Electrical Engineering, State Polytechnic of Malang, Malang 65141, Indonesia
    Department of Mechanical Engineering, Chung Yuan Christian University, Taoyuan 320314, Taiwan)

  • Hariyanto Gunawan

    (Department of Mechanical Engineering, Chung Yuan Christian University, Taoyuan 320314, Taiwan
    R&D Center for Smart Manufacturing, Chung Yuan Christian University, Taoyuan 320314, Taiwan)

  • Hsing-Yu Chen

    (Department of Mechanical Engineering, Chung Yuan Christian University, Taoyuan 320314, Taiwan
    R&D Center for Smart Manufacturing, Chung Yuan Christian University, Taoyuan 320314, Taiwan)

Abstract

Computer Numeric Control (CNC) five-axis milling plays a significant role in the machining of precision molds and dies, aerospace parts, consumer electronics, etc. This research aims to explore the potential of the machine learning (ML) technique in improving energy efficiency during the CNC five-axis milling process for sustainable manufacturing. The experiments with various machining parameters, forms of toolpath planning, and dry cutting conditions were carried out, and the data regarding energy consumption were collected simultaneously. The relationship between machine parameters and energy consumption was analyzed and built. Subsequently, a machine learning algorithm was developed to classify test methods and identify energy-efficient machining strategies. The developed algorithm was implemented and assessed using different classification methods based on the ML concept to effectively reduce energy consumption. The results show that the Decision Tree and Random Forest algorithms produced lower Root Mean Square Error (RMSE) values of 4.24 and 4.28, respectively, compared to Linear, Lasso, and Ridge Regression algorithms. Verification experiments were conducted to ascertain the real-world applicability and performance of the ML-based energy efficiency approach in an operational CNC five-axis milling machine. The findings not only underscore the potential of ML techniques in optimizing energy efficiency but also offer a compelling pathway towards enhanced sustainability in CNC machining operations. The developed algorithm was implemented within a simulation framework and the algorithm was rigorously assessed using machine learning analysis to effectively reduce energy consumption, all while ensuring the accuracy of the machining results and integrating both conventional and advanced regression algorithms into CNC machining processes. Manufacturers stand to realize substantial energy savings and bolster sustainability initiatives, thus exemplifying the transformative power of ML-driven optimization strategies.

Suggested Citation

  • Indrawan Nugrahanto & Hariyanto Gunawan & Hsing-Yu Chen, 2024. "Innovative Approaches to Sustainable Computer Numeric Control Machining: A Machine Learning Perspective on Energy Efficiency," Sustainability, MDPI, vol. 16(9), pages 1-22, April.
    • Handle: RePEc:gam:jsusta:v:16:y:2024:i:9:p:3569-:d:1381933
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    References listed on IDEAS

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