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A novel method to forecast energy consumption of selective laser melting processes

Lv, Jingxiang, Peng, Tao, Zhang, Yingfeng and Wang, Yuchang 2021. A novel method to forecast energy consumption of selective laser melting processes. International Journal of Production Research 59 (8) , pp. 2375-2391. 10.1080/00207543.2020.1733126

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As a promising additive manufacturing (AM) technology, the applications of selective laser melting (SLM) are expanding. Yet, due to the complex structure of SLM machines and low processing rates, the SLM process is highly energy-intensive. Energy forecasting is crucial for accurate evaluation and reduction of SLM energy consumption. However, due to the diversity of SLM machines and their various operating states, the energy consumption of SLM processes is difficult to predict. This article presents a novel method to forecast the energy consumption of SLM processes. The proposed approach is based on the power modelling of machine subsystems and the temporal modelling of sub-processes. Through identifying the working statuses of subsystems of SLM machines in each sub-process, forecast accuracy can be greatly improved. Two cases of aluminium components fabricated by an SLM process using an SLM 280HL facility are selected to demonstrate the effectiveness of the proposed method. Results show that the proposed method outperforms specific, stage-based and subsystem-based energy benchmark models in energy consumption forecasting.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Engineering
Publisher: Taylor and Francis
ISSN: 0020-7543
Date of Acceptance: 10 February 2020
Last Modified: 18 Aug 2021 11:30

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