Influence of process parameters on single track quality of 316L stainless steel by direct laser metal deposition (DLMD)

  • Văn Ngụy Dương Faculty of Mechanical Engineering, Military Technical Academy
  • Minh Tú Ngô Faculty of Mechanical Engineering, Military Technical Academy
  • Văn Quân Nguyễn Faculty of Mechanical Engineering, Military Technical Academy
  • Tài Hoài Thanh Nguyễn Faculty of Mechanical Engineering, Military Technical Academy
  • Văn Văn Lê Faculty of Mechanical Engineering, Military Technical Academy
  • Tatkhoa Doan Faculty of Mechanical Engineering, Military Technical Academy
Keywords: Direct laser metal deposition technology; DLMD; Laser; 316L.

Abstract

Direct Laser Metal Deposition (DLMD) is a modern shaping technology with great potential for application in key industries. There are many factors that affect the quality of the formed layer, among which the process parameters have a significant impact. This paper investigated the influence of process parameters, including laser power (P), powder feed rate (Mp), and scanning speed (V), on the geometric characteristics of the single track, such as height (h), width (Wc), and depth (hmix), when using the DLMD technology on 316L material. The results showed that: The laser power has the greatest impact on the width of the single track (45.97%) and the depth of the single track (42.05%). Meanwhile, the powder feed rate has the greatest influence on the height of the single track (58.44%).

điểm /   đánh giá
Published
2023-06-25
Issue
Vol. 88 (2023)
Section
Overview