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

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

955 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	American English
Journal	Additive Manufacturing
Volume	1-4
DOIs	https://doi.org/10.1016/j.addma.2014.08.002
State	Published - Oct 2014

Disciplines

Manufacturing

Keywords

Analysis
Defect generation
Powder bed fusion additive manufacturing process
Ti-6Al-4V parts

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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 = "Analysis, Defect generation, Powder bed fusion additive manufacturing process, Ti-6Al-4V parts",

author = "Haijun Gong and Khalid Rafi and Hengfeng Gu and Thomas Starr and Brent Stucker",

note = "Publisher Copyright: {\textcopyright} 2014 Elsevier B.V.",

year = "2014",

month = oct,

doi = "10.1016/j.addma.2014.08.002",

language = "American English",

volume = "1-4",

journal = "Additive Manufacturing",

issn = "2214-8604",

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T1 - Analysis of Defect Generation in Ti-6Al-4V Parts Made Using Powder Bed Fusion Additive Manufacturing Processes

AU - Gong, Haijun

AU - Rafi, Khalid

AU - Gu, Hengfeng

AU - Starr, Thomas

AU - Stucker, Brent

PY - 2014/10

Y1 - 2014/10

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 - Analysis

KW - Defect generation

KW - Powder bed fusion additive manufacturing process

KW - Ti-6Al-4V parts

UR - https://doi.org/10.1016/j.addma.2014.08.002

U2 - 10.1016/j.addma.2014.08.002

DO - 10.1016/j.addma.2014.08.002

M3 - Article

SN - 2214-8604

VL - 1-4

JO - Additive Manufacturing

JF - Additive Manufacturing

ER -

Analysis of Defect Generation in Ti-6Al-4V Parts Made Using Powder Bed Fusion Additive Manufacturing Processes

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Keywords

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