Interlaced layer thicknesses within single laser powder bed fusion geometries

Clare, Adam; Gullane, Alex; Hyde, Christopher; Murray, James W.; Sankare, Simon; Wits, Wessel W.

Abstract

The geometrical design freedoms associated with additive manufacturing techniques are currently well exploited and finding commercial application. The capability of layer-based processes to allow modification of composition and microstructure in process to achieve functional grading is currently a growing topic. In this work, a method is demonstrated for varying layer thickness within single components that allows part sections to be interlaced for the purpose of locally manipulating material and structural properties. Demonstrator geometries are explored here which exhibit the interfaces within specimens constituted of both 30 µm and 150 µm. Accordingly, a new design freedom for laser powder bed fusion is created.

Citation

Clare, A., Gullane, A., Hyde, C., Murray, J. W., Sankare, S., & Wits, W. W. (2021). Interlaced layer thicknesses within single laser powder bed fusion geometries. CIRP Annals - Manufacturing Technology, https://doi.org/10.1016/j.cirp.2021.03.001

• Journal Article Type: Article
• Acceptance Date: Mar 18, 2021
• Online Publication Date: Mar 27, 2021
• Publication Date: Mar 27, 2021
• Deposit Date: Apr 9, 2021
• Publicly Available Date: Sep 28, 2022
• Journal: CIRP Annals
• Print ISSN: 0007-8506
• Electronic ISSN: 1726-0604
• Publisher: Elsevier
• Peer Reviewed: Peer Reviewed
• DOI: https://doi.org/10.1016/j.cirp.2021.03.001
• Keywords: Mechanical Engineering; Industrial and Manufacturing Engineering
• Public URL: https://nottingham-repository.worktribe.com/output/5421499
• Publisher URL: https://www.sciencedirect.com/science/article/abs/pii/S0007850621000019