Abstract
Energy saving and consumption reduction is one of the current important research in the field of green and sustainable manufacturing. Products or components containing variable curvature contouring are widely used in the automotive, medical, aerospace, and mold industries, while there is a lack of methods to model the energy consumption ratio for variable curvature contouring and improve its energy efficiency. A method for modeling the specific energy consumption of variable curvature contouring and energy consumption optimization is proposed for this problem. Firstly, the components of energy consumption in processing of the CNC machine tool machining are analyzed, and the relationship between curvature characteristics and material removal rate is investigated from the geometric perspective. Secondly, orthogonal experiments with different curvatures of straight lines, convex arcs, and concave arcs are designed to collect energy consumption data. Based on the experimental data, the Dueling Deep Q-Network optimization support vector regression (Dueling DQN-SVR) was used to establish the specific energy consumption model considering the curvature. Finally, a multi-objective optimization model is constructed when considering specific energy consumption, efficiency, and quality, and the Pareto solution set is solved using a multi-objective Gray Wolf optimization algorithm (MOGWO). The Technique for Order Preference by Similarity to Ideal Solution (TOPSIS) method was used to select the optimal combination of machining parameters. The experimental results show that the accuracy of the established model is more than 95%. The method improved energy efficiency by more than 7.82% and efficiency by more than 1.128%. These research results are of great theoretical and practical significance for achieving energy-efficient variable curvature contour machining.
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Funding
This research is supported by the National Natural Science Foundation of China (NSFC) (Grant No. 52165062), Guangxi Natural Science Foundation Program (Grant No. 2020JJD160004).
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All authors contributed to the study’s conception and design. Junyan Ma is responsible for theoretical analysis, literature search, experimental design and execution, and manuscript writing. Jiangyou Liu, Lutao Wei, Chengyi Ou, and Juan Lu are primarily responsible for guiding the content and structure of the paper as well as reviewing and assisting in the revision of the manuscript. Liao is the general leader of the grant project, responsible for controlling the research direction and methodology and reviewing the manuscript. All authors read and approved the final manuscript.
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Ma, J., Liu, J., Wei, L. et al. Energy optimization method for variable curvature contour machining. Int J Adv Manuf Technol 132, 2187–2207 (2024). https://doi.org/10.1007/s00170-024-13478-y
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DOI: https://doi.org/10.1007/s00170-024-13478-y