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Factor analysis of selective laser melting process parameters with normalised quantities and Taguchi method
Jiang HZ(蒋华臻); Li ZY(李正阳); Feng T; Wu PY; Chen QS(陈启生); Fen YL; Li SW; Gao H(高欢); Xu HJ
Source PublicationOPTICS AND LASER TECHNOLOGY
2019-11-01
Volume119Pages:11
ISSN0030-3992
Abstract

Extensive experiments have been carried out to derive material-process-microstructure-properties relationships for powder bed fusion (PBF) process. Selecting a set of appropriate processing parameters to achieve high quality part is of great challenge, since the quality of part is affected by many factors involved in the process. However, a lot of investigations of processing parameters on performance of part merely focused on one or two parameters variation while others were fixed. A comprehensive study about the influence of multiple factors on selective laser melting (SLM) process is still lack of deep research. In this paper, normalised quantities, such as E-0*, q*, nu*, etc., and a dimensionless group of process variables are adopted to determine a processing window. Taguchi method is used to optimize the settings of processing parameters. Experiments were carried out by SLM with 316 L stainless steel powder. The following response variables, top surface roughness (R-a), hardness (HV) and density (rho) were measured. The effect of laser power q, scanning speed nu, hatch spacing h and their interactions, such as q x nu, q x h, nu x h, on top surface roughness (R-a), hardness (HV) and density (rho) was evaluated by Analysis of Variance (ANOVA). It is shown that laser power is of great significance among the parameters, while hatch spacing, scanning speed and their interactions affect the quality of samples with differently significant levels. The results of this research show that normalised processing map is a powerful tool for optimizing processing parameters to get high quality parts.

KeywordAdditive manufacturing Parameters optimizing Dimensionless quantities Selective laser melting 316L stainless steel
DOI10.1016/j.optlastec.2019.105592
Indexed BySCI ; EI
Language英语
WOS IDWOS:000482244400039
WOS KeywordSTAINLESS-STEEL 316L ; POWDER-BED FUSION ; GRAIN-STRUCTURE ; MICROSTRUCTURE ; AUSTENITE ; DIAGRAMS ; BEHAVIOR ; PARTS
WOS Research AreaOptics ; Physics
WOS SubjectOptics ; Physics, Applied
Funding ProjectNational Natural Science Foundation of China[11772344] ; National Key R&D Program of China[2016YFB1100700]
Funding OrganizationNational Natural Science Foundation of China ; National Key R&D Program of China
Classification二类/Q1
Ranking1
Citation statistics
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/79995
Collection国家微重力实验室
Recommended Citation
GB/T 7714
Jiang HZ,Li ZY,Feng T,et al. Factor analysis of selective laser melting process parameters with normalised quantities and Taguchi method[J]. OPTICS AND LASER TECHNOLOGY,2019,119:11.
APA Jiang HZ.,Li ZY.,Feng T.,Wu PY.,Chen QS.,...&Xu HJ.(2019).Factor analysis of selective laser melting process parameters with normalised quantities and Taguchi method.OPTICS AND LASER TECHNOLOGY,119,11.
MLA Jiang HZ,et al."Factor analysis of selective laser melting process parameters with normalised quantities and Taguchi method".OPTICS AND LASER TECHNOLOGY 119(2019):11.
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