Laser Sintering Powder Bed Simulation: Effects of Laser Power and Scanning Speed on the Melt Pool in Selective Laser Sintering of Walnut Shell/Co-Polyester Composite

Authors

  • Yueqiang Yu Key Laboratory of Advanced Manufacturing and Intelligent Technology (Ministry of Education), Harbin 150080, China; College of Mechanical Science and Engineering, Northeast Petroleum University, Daqing, 163318, China; Heilongjiang Province Petroleum Drilling and Production Equipment Remanufacturing Technology Innovation Center, Northeast Petroleum University, Daqing, 163318, China
  • Chenxiang Yuan College of Mechanical Science and Engineering, Northeast Petroleum University, Daqing, 163318, China
  • Ting Jiang College of Mechanical Science and Engineering, Northeast Petroleum University, Daqing, 163318, China; Heilongjiang Province Petroleum Drilling and Production Equipment Remanufacturing Technology Innovation Center, Northeast Petroleum University, Daqing, 163318, China
  • Yanling Guo Research and Development Center of 3D Printing Material and Technology Northeast Forestry University, Harbin 150040, China
  • Sheng Gao College of Mechanical Science and Engineering, Northeast Petroleum University, Daqing, 163318, China; Heilongjiang Province Petroleum Drilling and Production Equipment Remanufacturing Technology Innovation Center, Northeast Petroleum University, Daqing, 163318, China
  • Guangyu Li College of Mechanical Science and Engineering, Northeast Petroleum University, Daqing, 163318, China
  • Jichang Wang College of Mechanical Science and Engineering, Northeast Petroleum University, Daqing, 163318, China
  • Zenan Li College of Mechanical Science and Engineering, Northeast Petroleum University, Daqing, 163318, China
  • Bakary S. Doumbia Forestry and Woodworking Machinery Engineering Technology Center, Northeast Forestry University, Harbin 150040, China

Keywords:

Additive manufacturing, Selective laser sintering, Biomass composite, Walnut shell powder, Temperature field, Sintering appearance

Abstract

Selective Laser Sintering (SLS) is an advanced additive manufacturing technology that is widely used in multiple fields. This study investigated the effects of laser power and scanning speed on the SLS melt pool using FLOW-3D numerical simulations and experimental validation. The raw material was a mixture of walnut shell powder and copolyester (co-PES) hot melt adhesive powder. Experimental temperature measurements confirmed the numerical model’s accuracy, revealing a deviation of less than 10% between the simulated and actual center temperatures of the melt pool. The results demonstrated that a stable, continuous single-track melt pool was achieved under optimal parameters of 10 W laser power and 1400 mm/s scanning speed. Conversely, increasing the scanning speed to 1600 to 2200 mm/s at a constant 10 W power substantially reduced thermal energy input. This reduction induced a transition to metastable melt pools, ultimately leading to the formation of semi-melted particles. These insights can provide a basis for optimization of SLS manufacturing parameters.

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Published

2026-10-12

How to Cite

Yu, Y., Yuan, C., Jiang, T., Guo, Y., Gao, S., Li, G., … Doumbia, B. S. (2026). Laser Sintering Powder Bed Simulation: Effects of Laser Power and Scanning Speed on the Melt Pool in Selective Laser Sintering of Walnut Shell/Co-Polyester Composite. BioResources, 21(4), 11467–11482. Retrieved from https://ojs.bioresources.com/index.php/BRJ/article/view/25749

Issue

Vol. 21 No. 4 (2026)

Section

Research Article or Brief Communication