Microstructure and residual stress in Ti-6l-4V parts made by different additive manufacturing techniques

Research output: Contribution to conferencePoster

Abstract

Additive manufacturing (AM) or additive layer manufacturing, direct digital manufacturing and 3D printing, is rapidly growing as an advanced manufacturing technology. Powder bed fusion (PBF) and directed energy deposition (DPD) are two main groups of AM techniques available at present. The material’s mechanical properties, residual stress level and surface quality are the major limitations preventing the uptake of the technology to produce components for demanding engineering applications. The objective of this study is to obtain more in-depth knowledge of microstructure and residual stress developments in Ti-6Al-4V cylindrical parts made by different AM techniques, and compare the results with parts made through traditional manufacturing practices. For this purpose, direct comparisons are made between the materials made by AM techniques and those made by a forging process route. Five different components of the same material made through different manufacturing routes, including traditional forging and AM methods: electron beam melting (EBM), direct metal laser sintering (DMLS), and laser metal deposition (LMD), were analysed. These include microstructure characterisation and residual stress measurements by x-ray diffraction (XRD) and a hole-drilling technique based on electronic speckle pattern interferometry (ESPI). The material produced by AM techniques was compared with the mill-annealed condition of conventionally forged material.
LanguageEnglish
Publication statusPublished - 30 May 2017
EventStrath Wide Researcher Conference 2017 - Strathclyde
Duration: 30 May 201730 May 2017

Conference

ConferenceStrath Wide Researcher Conference 2017
Period30/05/1730/05/17

Fingerprint

3D printers
Residual stresses
Microstructure
Forging
Electron beam melting
Lasers
Stress measurement
Speckle
Metals
Interferometry
Surface properties
Printing
Drilling
Fusion reactions
Sintering
Diffraction
Powders
X rays
Mechanical properties

Keywords

  • additive manufacturing
  • AM
  • industrial engineering
  • powder bed fusion
  • PBF
  • directed energy deposition (DED)

Cite this

@conference{d1dfb56767a5462f801de0b62979c41f,
title = "Microstructure and residual stress in Ti-6l-4V parts made by different additive manufacturing techniques",
abstract = "Additive manufacturing (AM) or additive layer manufacturing, direct digital manufacturing and 3D printing, is rapidly growing as an advanced manufacturing technology. Powder bed fusion (PBF) and directed energy deposition (DPD) are two main groups of AM techniques available at present. The material’s mechanical properties, residual stress level and surface quality are the major limitations preventing the uptake of the technology to produce components for demanding engineering applications. The objective of this study is to obtain more in-depth knowledge of microstructure and residual stress developments in Ti-6Al-4V cylindrical parts made by different AM techniques, and compare the results with parts made through traditional manufacturing practices. For this purpose, direct comparisons are made between the materials made by AM techniques and those made by a forging process route. Five different components of the same material made through different manufacturing routes, including traditional forging and AM methods: electron beam melting (EBM), direct metal laser sintering (DMLS), and laser metal deposition (LMD), were analysed. These include microstructure characterisation and residual stress measurements by x-ray diffraction (XRD) and a hole-drilling technique based on electronic speckle pattern interferometry (ESPI). The material produced by AM techniques was compared with the mill-annealed condition of conventionally forged material.",
keywords = "additive manufacturing, AM, industrial engineering, powder bed fusion, PBF, directed energy deposition (DED)",
author = "Konkova, {T. N.} and S. Rahimi and Blackwell, {P. L.}",
year = "2017",
month = "5",
day = "30",
language = "English",
note = "Strath Wide Researcher Conference 2017 ; Conference date: 30-05-2017 Through 30-05-2017",

}

Microstructure and residual stress in Ti-6l-4V parts made by different additive manufacturing techniques. / Konkova, T. N.; Rahimi, S.; Blackwell, P. L.

2017. Poster session presented at Strath Wide Researcher Conference 2017, .

Research output: Contribution to conferencePoster

TY - CONF

T1 - Microstructure and residual stress in Ti-6l-4V parts made by different additive manufacturing techniques

AU - Konkova, T. N.

AU - Rahimi, S.

AU - Blackwell, P. L.

PY - 2017/5/30

Y1 - 2017/5/30

N2 - Additive manufacturing (AM) or additive layer manufacturing, direct digital manufacturing and 3D printing, is rapidly growing as an advanced manufacturing technology. Powder bed fusion (PBF) and directed energy deposition (DPD) are two main groups of AM techniques available at present. The material’s mechanical properties, residual stress level and surface quality are the major limitations preventing the uptake of the technology to produce components for demanding engineering applications. The objective of this study is to obtain more in-depth knowledge of microstructure and residual stress developments in Ti-6Al-4V cylindrical parts made by different AM techniques, and compare the results with parts made through traditional manufacturing practices. For this purpose, direct comparisons are made between the materials made by AM techniques and those made by a forging process route. Five different components of the same material made through different manufacturing routes, including traditional forging and AM methods: electron beam melting (EBM), direct metal laser sintering (DMLS), and laser metal deposition (LMD), were analysed. These include microstructure characterisation and residual stress measurements by x-ray diffraction (XRD) and a hole-drilling technique based on electronic speckle pattern interferometry (ESPI). The material produced by AM techniques was compared with the mill-annealed condition of conventionally forged material.

AB - Additive manufacturing (AM) or additive layer manufacturing, direct digital manufacturing and 3D printing, is rapidly growing as an advanced manufacturing technology. Powder bed fusion (PBF) and directed energy deposition (DPD) are two main groups of AM techniques available at present. The material’s mechanical properties, residual stress level and surface quality are the major limitations preventing the uptake of the technology to produce components for demanding engineering applications. The objective of this study is to obtain more in-depth knowledge of microstructure and residual stress developments in Ti-6Al-4V cylindrical parts made by different AM techniques, and compare the results with parts made through traditional manufacturing practices. For this purpose, direct comparisons are made between the materials made by AM techniques and those made by a forging process route. Five different components of the same material made through different manufacturing routes, including traditional forging and AM methods: electron beam melting (EBM), direct metal laser sintering (DMLS), and laser metal deposition (LMD), were analysed. These include microstructure characterisation and residual stress measurements by x-ray diffraction (XRD) and a hole-drilling technique based on electronic speckle pattern interferometry (ESPI). The material produced by AM techniques was compared with the mill-annealed condition of conventionally forged material.

KW - additive manufacturing

KW - AM

KW - industrial engineering

KW - powder bed fusion

KW - PBF

KW - directed energy deposition (DED)

M3 - Poster

ER -