Review of directed energy deposition additive manufactured printed specimens

This Final Year Project (FYP) paper presents a comprehensive study on the fatigue behaviour of Directed Energy Deposition specimens on these 5 commonly used materials - Stainless Steel 316L (SS316L), Titanium Alloy (Ti-6Al-4V), Aluminium Alloy (AlSi10Mg), Inconel 625 (IN625), Inconel 718 (IN718). Th...

全面介紹

Saved in:
書目詳細資料
主要作者: Yusuf Bin Mohd Azawan
其他作者: Pang Hock Lye, John
格式: Final Year Project
語言:English
出版: Nanyang Technological University 2024
主題:
DED
在線閱讀:https://hdl.handle.net/10356/176827
標簽: 添加標簽
沒有標簽, 成為第一個標記此記錄!
機構: Nanyang Technological University
語言: English
實物特徵
總結:This Final Year Project (FYP) paper presents a comprehensive study on the fatigue behaviour of Directed Energy Deposition specimens on these 5 commonly used materials - Stainless Steel 316L (SS316L), Titanium Alloy (Ti-6Al-4V), Aluminium Alloy (AlSi10Mg), Inconel 625 (IN625), Inconel 718 (IN718). The focus is on two key factors influencing fatigue life, which is process parameters (including post-processing) and microstructure. Fatigue data, process parameters and microstructure were compiled from literature reviews. Common attributes and correlations with fatigue behaviour are analysed. Process parameters analysed included the effects of laser power, scan speed, interlayer treatments, while microstructure analysis included the porosity and surface defects. This study reveals a lack of standardisation in documenting and understanding the relationship between process parameters and reproducing similar or consistent fatigue performance. Computational modelling has not matured enough to comprehensively predict and map the relationship between fatigue and DED process parameters. The findings of this FYP provide valuable insights into the potential to harness DED in more application and robust usage in the additive manufacturing industry, especially in fatigue-critical applications and the need for process optimization to minimize defects.