Laser Powder Bed Fusion Process Optimization of AlSi10Mg Alloy Using Selective Laser Melting: Dynamic Performance of Fatigue Behaviour, Microstructure, Hardness and Density

IF 1.1 Q4 ENGINEERING, MECHANICAL

Journal of Mechanical Engineering and Sciences Pub Date : 2023-01-15 DOI:10.24191/jmeche.v20i1.21074

M. Nirish, R. Rajendra, Buschaiah Karolla

{"title":"Laser Powder Bed Fusion Process Optimization of AlSi10Mg Alloy Using Selective Laser Melting: Dynamic Performance of Fatigue Behaviour, Microstructure, Hardness and Density","authors":"M. Nirish, R. Rajendra, Buschaiah Karolla","doi":"10.24191/jmeche.v20i1.21074","DOIUrl":null,"url":null,"abstract":"The quality of a selective laser melting (SLM) component depends on build orientation and layer thickness, which are directly influenced by processing parameters. The present research of layer-by-layer additive simulation before starting the SLM process has several advantages, such as saving time, cost, and material. In this main investigation, the dynamic performance of fatigue strength, density, and hardness of AlSi10Mg alloy was produced by the SLM-AM according to the design of experiments. The L9 orthogonal array of the Taguchi method was created to perform the experimental development process. Finally, the obtained optimal process parameter with the highest values of fatigue strength, density, and hardness was found at a laser power of 225 Watts, a scan speed of 500 mm/s, and a hatching distance of 100 μm. The experimental density result was achieved with a high density value of 99.6% (2.66 g/cm3) and a defect-free component and hardness of 126±5 HV. The future scope of this study will use optimal process parameters to find out mechanical properties for as built and preheated conditions for aerospace applications.","PeriodicalId":16166,"journal":{"name":"Journal of Mechanical Engineering and Sciences","volume":null,"pages":null},"PeriodicalIF":1.1000,"publicationDate":"2023-01-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Mechanical Engineering and Sciences","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.24191/jmeche.v20i1.21074","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"ENGINEERING, MECHANICAL","Score":null,"Total":0}

引用次数: 0

Abstract

The quality of a selective laser melting (SLM) component depends on build orientation and layer thickness, which are directly influenced by processing parameters. The present research of layer-by-layer additive simulation before starting the SLM process has several advantages, such as saving time, cost, and material. In this main investigation, the dynamic performance of fatigue strength, density, and hardness of AlSi10Mg alloy was produced by the SLM-AM according to the design of experiments. The L9 orthogonal array of the Taguchi method was created to perform the experimental development process. Finally, the obtained optimal process parameter with the highest values of fatigue strength, density, and hardness was found at a laser power of 225 Watts, a scan speed of 500 mm/s, and a hatching distance of 100 μm. The experimental density result was achieved with a high density value of 99.6% (2.66 g/cm3) and a defect-free component and hardness of 126±5 HV. The future scope of this study will use optimal process parameters to find out mechanical properties for as built and preheated conditions for aerospace applications.

查看原文本刊更多论文

AlSi10Mg合金选择性激光熔化激光粉末床熔合工艺优化:疲劳行为、显微组织、硬度和密度动态性能

选择性激光熔化(SLM)组件的质量取决于构建方向和层厚，而这两个方向和层厚直接受到工艺参数的影响。目前在SLM工艺开始前进行逐层增材模拟的研究具有节省时间、成本和材料等优点。根据实验设计，利用SLM-AM对AlSi10Mg合金的疲劳强度、密度、硬度等动态性能进行了研究。建立了田口法的L9正交阵列，进行了实验开发过程。在激光功率为225瓦、扫描速度为500 mm/s、孵化距离为100 μm的条件下，获得了疲劳强度、密度和硬度最高的最佳工艺参数。实验密度达到99.6% (2.66 g/cm3)，无缺陷成分，硬度为126±5 HV。这项研究的未来范围将使用最佳工艺参数来找出航空航天应用的建造和预热条件下的机械性能。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Journal of Mechanical Engineering and Sciences ENGINEERING, MECHANICAL-

自引率

0.00%

发文量

审稿时长

20 weeks

期刊介绍： The Journal of Mechanical Engineering & Sciences "JMES" (ISSN (Print): 2289-4659; e-ISSN: 2231-8380) is an open access peer-review journal (Indexed by Emerging Source Citation Index (ESCI), WOS; SCOPUS Index (Elsevier); EBSCOhost; Index Copernicus; Ulrichsweb, DOAJ, Google Scholar) which publishes original and review articles that advance the understanding of both the fundamentals of engineering science and its application to the solution of challenges and problems in mechanical engineering systems, machines and components. It is particularly concerned with the demonstration of engineering science solutions to specific industrial problems. Original contributions providing insight into the use of analytical, computational modeling, structural mechanics, metal forming, behavior and application of advanced materials, impact mechanics, strain localization and other effects of nonlinearity, fluid mechanics, robotics, tribology, thermodynamics, and materials processing generally from the core of the journal contents are encouraged. Only original, innovative and novel papers will be considered for publication in the JMES. The authors are required to confirm that their paper has not been submitted to any other journal in English or any other language. The JMES welcome contributions from all who wishes to report on new developments and latest findings in mechanical engineering.