Improved co-scheduling of multi-layer printing path scanning for collaborative additive manufacturing
Improved co-scheduling of multi-layer printing path scanning for collaborative additive manufacturing
复制标题
改进协同增材制造的多层打印路径扫描的协同调度
DOI:
10.1080/24725854.2020.1807076
复制
发表时间:
2020
影响因子:
2.6
通讯作者:
Sun, Yanshuo
中科院分区:
文献类型:
--
作者:
Jiang, Zhengqian;Wang, Hui;Sun, Yanshuo
Additive manufacturing processes, especially those based on fused filament fabrication mechanism, have a low productivity. One solution to this problem is to adopt a collaborative additive manufacturing system that employs multiple printers/extruders working simultaneously to improve productivity by reducing the process makespan. However, very limited research is available to address the major challenges in the co-scheduling of printing path scanning for different extruders. Existing studies lack: (i) a consideration of the impact of sub-path partitions and simultaneous printing of multiple layers on the multi-extruder printing makespan; and (ii) efficient algorithms to deal with the multiple decision-making involved. This article develops an improved method by first breaking down printing paths on different printing layers into sub-paths and assigning these generated sub-paths to different extruders. A mathematical model is formulated for the co-scheduling problem, and a hybrid algorithm with sequential solution procedures integrating an evolutionary algorithm and a heuristic is customized to multiple decision-making in the co-scheduling for collaborative printing. The performance was compared with the most recent research, and the results demonstrated further makespan reduction when sub-path partition or the simultaneous printing of multiple layers is considered. This article discusses the impacts of process setups on makespan reduction, providing a quantitative tool for guiding process development.
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