[P] P110~P116

[P115] The Role of Substrate Heating in Controlling Bead Quality and Meltpool Formation via the Multi-Beam Laser Directed Energy Deposition

*Kholqillah　Ardhian Ilman^1,2, Yorihiro Yamashita³, Takahiro Kunimine¹ (1. Kanazawa University、2. Universitas Muhammadiyah Surakarta、3. University of Fukui)

Keywords:

multi-beam laser directed energy deposition (MBL-DED),substrate heating,laser focal positioning,high-entropy alloys (HEA),meltpool control

Optimization of multi-beam laser DED parameters, including substrate heating and laser focal position, enhances bead quality, minimizes meltpool formation, and prevents Fe incorporation in HEA bead.