Scholarlink

The Ti–5Al–5Mo–5V–3Cr alloy (Ti-5553Ti-5553) is a near-β titanium alloyTitanium alloy known for its remarkable combination of strength, toughness, and lightweight properties, making it an ideal choice for producing intricate structural components via additive manufacturingAdditive manufacturing (AM) techniques. Despite the advantages of AM, post-machining, such as drillingDrilling, is required to achieve tight tolerances and smooth surface finishes in critical parts like load-bearing fuselage components and landing gear in aircraft. However, the unique machinabilityMachinability characteristics of AM-produced parts pose challenges in the manufacturing process. In this study, Ti-5553 samples were fabricated using laser powder bed fusionLaser Powder Bed Fusion (LPBF), and holes were machined under varying drillingDrilling parameters. The machined surfaces and subsurfaces were characterized in terms of microstructureMicrostructure, surface defects, morphologyMorphologies, and roughness. This research highlights the manufacturability of LPBF-built Ti-5553Ti-5553 parts and elucidates the effect of drillingDrilling parameters on surface integritySurface integrity, contributing to the optimizationOptimizations of manufacturing processes.

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Characterization of Surface Integrity in Post-processed Ti–5Al–5Mo–5V–3Cr Parts Fabricated via Laser Powder Bed Fusion

  • 会议论文

  • 发表日期：

    2025年

查看全文
  • David Yan,
  • Roman Bolzowski

摘要

The Ti–5Al–5Mo–5V–3Cr alloy (Ti-5553Ti-5553) is a near-β titanium alloyTitanium alloy known for its remarkable combination of strength, toughness, and lightweight properties, making it an ideal choice for producing intricate structural components via additive manufacturingAdditive manufacturing (AM) techniques. Despite the advantages of AM, post-machining, such as drillingDrilling, is required to achieve tight tolerances and smooth surface finishes in critical parts like load-bearing fuselage components and landing gear in aircraft. However, the unique machinabilityMachinability characteristics of AM-produced parts pose challenges in the manufacturing process. In this study, Ti-5553 samples were fabricated using laser powder bed fusionLaser Powder Bed Fusion (LPBF), and holes were machined under varying drillingDrilling parameters. The machined surfaces and subsurfaces were characterized in terms of microstructureMicrostructure, surface defects, morphologyMorphologies, and roughness. This research highlights the manufacturability of LPBF-built Ti-5553Ti-5553 parts and elucidates the effect of drillingDrilling parameters on surface integritySurface integrity, contributing to the optimizationOptimizations of manufacturing processes.