Analysis of defect generation in Ti-6Al-4V parts made using powder bed fusion additive manufacturing processes

Haijun Gong; Khalid Rafi; Hengfeng Gu; Thomas Starr; Brent Stucker

doi:10.1016/j.addma.2014.08.002

Analysis of defect generation in Ti-6Al-4V parts made using powder bed fusion additive manufacturing processes

Haijun Gong
, Khalid Rafi
, Hengfeng Gu
, Thomas Starr
, Brent Stucker

Manufacturing Engineering

University of Louisville
Nanyang Technological University

Research output: Contribution to journal › Article › peer-review

1098 Scopus citations

Abstract

Ti-6Al-4V parts made using additive manufacturing processes such as selective laser melting (SLM) and electron beam melting (EBM) are subject to the inclusion of defects. This study purposely fabricated Ti-6Al-4V samples with defects by varying process parameters from the factory default settings in both SLM and EBM systems. Process parameters are classified according to their tendency to create certain types of porosity. Finally, defect characteristics are discussed with respect to defect generation mechanisms; and effective process windows for SLM and EBM system are discussed.

Original language	English
Pages (from-to)	87-98
Number of pages	12
Journal	Additive Manufacturing
Volume	1
DOIs	https://doi.org/10.1016/j.addma.2014.08.002
State	Published - Oct 1 2014

Scopus Subject Areas

Biomedical Engineering
General Materials Science
Engineering (miscellaneous)
Industrial and Manufacturing Engineering

Keywords

Additive manufacturing
Defect
EBM
SLM
Ti-6Al-4V

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Cite this

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title = "Analysis of defect generation in Ti-6Al-4V parts made using powder bed fusion additive manufacturing processes",

abstract = "Ti-6Al-4V parts made using additive manufacturing processes such as selective laser melting (SLM) and electron beam melting (EBM) are subject to the inclusion of defects. This study purposely fabricated Ti-6Al-4V samples with defects by varying process parameters from the factory default settings in both SLM and EBM systems. Process parameters are classified according to their tendency to create certain types of porosity. Finally, defect characteristics are discussed with respect to defect generation mechanisms; and effective process windows for SLM and EBM system are discussed.",

keywords = "Additive manufacturing, Defect, EBM, SLM, Ti-6Al-4V",

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AU - Gong, Haijun

AU - Rafi, Khalid

AU - Gu, Hengfeng

AU - Starr, Thomas

AU - Stucker, Brent

PY - 2014/10/1

Y1 - 2014/10/1

N2 - Ti-6Al-4V parts made using additive manufacturing processes such as selective laser melting (SLM) and electron beam melting (EBM) are subject to the inclusion of defects. This study purposely fabricated Ti-6Al-4V samples with defects by varying process parameters from the factory default settings in both SLM and EBM systems. Process parameters are classified according to their tendency to create certain types of porosity. Finally, defect characteristics are discussed with respect to defect generation mechanisms; and effective process windows for SLM and EBM system are discussed.

AB - Ti-6Al-4V parts made using additive manufacturing processes such as selective laser melting (SLM) and electron beam melting (EBM) are subject to the inclusion of defects. This study purposely fabricated Ti-6Al-4V samples with defects by varying process parameters from the factory default settings in both SLM and EBM systems. Process parameters are classified according to their tendency to create certain types of porosity. Finally, defect characteristics are discussed with respect to defect generation mechanisms; and effective process windows for SLM and EBM system are discussed.

KW - Additive manufacturing

KW - Defect

KW - EBM

KW - SLM

KW - Ti-6Al-4V

UR - https://www.scopus.com/pages/publications/84915757925

U2 - 10.1016/j.addma.2014.08.002

DO - 10.1016/j.addma.2014.08.002

M3 - Article

SN - 2214-8604

VL - 1

SP - 87

EP - 98

JO - Additive Manufacturing

JF - Additive Manufacturing

ER -

Analysis of defect generation in Ti-6Al-4V parts made using powder bed fusion additive manufacturing processes

Abstract

Scopus Subject Areas

Keywords

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