Stress distributions in multilayer laser deposited Waspaloy parts measured using neutron diffraction

Richard J. Moat; Andrew J. Pinkerton; Darren J. Hughes; Lin Li; Philip J. Withers; Michael Preuss

Stress distributions in multilayer laser deposited Waspaloy parts measured using neutron diffraction

Richard J. Moat, Andrew J. Pinkerton, Darren J. Hughes, Lin Li, Philip J. Withers, Michael Preuss

Mechanical and Aerospace Engineering

Research output: Chapter in Book/Conference proceeding › Conference contribution

Abstract

During layered manufacturing of functional metallic parts by laser direct metal deposition (LDMD) residual stresses are generated by the transient thermal fields. Various methods to reduce or control the development of these stresses have been previously attempted. This paper reports a novel method using the pulse parameters of a diode laser deposition system as a tool for residual stress control. Stresses in LDMD manufactured Waspaloy blocks are calculated from strain measurements in three directions carried out at the neutron diffraction beam line SALSA at the European ILL facility, Grenoble, France. The results show tensile stresses close to the top of the structures of similar magnitude for all parameters and large compressive stresses normal to the deposition surface close to the base.

Original language	English
Title of host publication	26th International Congress on Applications of Lasers and Electro-Optics, ICALEO 2007 - Congress Proceedings\|Int. Congr. Appl. Lasers Electro-Opt., ICALEO - Congr. Proc.
Publication status	Published - 2007
Event	26th International Congress on Applications of Lasers and Electro-Optics, ICALEO 2007 - Orlando, FL Duration: 1 Jul 2007 → …

Conference

Conference	26th International Congress on Applications of Lasers and Electro-Optics, ICALEO 2007
City	Orlando, FL
Period	1/07/07 → …

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Cite this

@inproceedings{7240b36bd7f64b6590d9eac34268e68d,

title = "Stress distributions in multilayer laser deposited Waspaloy parts measured using neutron diffraction",

abstract = "During layered manufacturing of functional metallic parts by laser direct metal deposition (LDMD) residual stresses are generated by the transient thermal fields. Various methods to reduce or control the development of these stresses have been previously attempted. This paper reports a novel method using the pulse parameters of a diode laser deposition system as a tool for residual stress control. Stresses in LDMD manufactured Waspaloy blocks are calculated from strain measurements in three directions carried out at the neutron diffraction beam line SALSA at the European ILL facility, Grenoble, France. The results show tensile stresses close to the top of the structures of similar magnitude for all parameters and large compressive stresses normal to the deposition surface close to the base.",

author = "Moat, {Richard J.} and Pinkerton, {Andrew J.} and Hughes, {Darren J.} and Lin Li and Withers, {Philip J.} and Michael Preuss",

year = "2007",

language = "English",

isbn = "9780912035888",

booktitle = "26th International Congress on Applications of Lasers and Electro-Optics, ICALEO 2007 - Congress Proceedings|Int. Congr. Appl. Lasers Electro-Opt., ICALEO - Congr. Proc.",

note = "26th International Congress on Applications of Lasers and Electro-Optics, ICALEO 2007 ; Conference date: 01-07-2007",

}

Moat, RJ, Pinkerton, AJ, Hughes, DJ, Li, L , Withers, PJ & Preuss, M 2007, Stress distributions in multilayer laser deposited Waspaloy parts measured using neutron diffraction. in 26th International Congress on Applications of Lasers and Electro-Optics, ICALEO 2007 - Congress Proceedings|Int. Congr. Appl. Lasers Electro-Opt., ICALEO - Congr. Proc.. 26th International Congress on Applications of Lasers and Electro-Optics, ICALEO 2007, Orlando, FL, 1/07/07.

Stress distributions in multilayer laser deposited Waspaloy parts measured using neutron diffraction. / Moat, Richard J.; Pinkerton, Andrew J.; Hughes, Darren J. et al.
26th International Congress on Applications of Lasers and Electro-Optics, ICALEO 2007 - Congress Proceedings|Int. Congr. Appl. Lasers Electro-Opt., ICALEO - Congr. Proc.. 2007.

Research output: Chapter in Book/Conference proceeding › Conference contribution

TY - GEN

T1 - Stress distributions in multilayer laser deposited Waspaloy parts measured using neutron diffraction

AU - Moat, Richard J.

AU - Pinkerton, Andrew J.

AU - Hughes, Darren J.

AU - Li, Lin

AU - Withers, Philip J.

AU - Preuss, Michael

PY - 2007

Y1 - 2007

N2 - During layered manufacturing of functional metallic parts by laser direct metal deposition (LDMD) residual stresses are generated by the transient thermal fields. Various methods to reduce or control the development of these stresses have been previously attempted. This paper reports a novel method using the pulse parameters of a diode laser deposition system as a tool for residual stress control. Stresses in LDMD manufactured Waspaloy blocks are calculated from strain measurements in three directions carried out at the neutron diffraction beam line SALSA at the European ILL facility, Grenoble, France. The results show tensile stresses close to the top of the structures of similar magnitude for all parameters and large compressive stresses normal to the deposition surface close to the base.

AB - During layered manufacturing of functional metallic parts by laser direct metal deposition (LDMD) residual stresses are generated by the transient thermal fields. Various methods to reduce or control the development of these stresses have been previously attempted. This paper reports a novel method using the pulse parameters of a diode laser deposition system as a tool for residual stress control. Stresses in LDMD manufactured Waspaloy blocks are calculated from strain measurements in three directions carried out at the neutron diffraction beam line SALSA at the European ILL facility, Grenoble, France. The results show tensile stresses close to the top of the structures of similar magnitude for all parameters and large compressive stresses normal to the deposition surface close to the base.

M3 - Conference contribution

SN - 9780912035888

BT - 26th International Congress on Applications of Lasers and Electro-Optics, ICALEO 2007 - Congress Proceedings|Int. Congr. Appl. Lasers Electro-Opt., ICALEO - Congr. Proc.

T2 - 26th International Congress on Applications of Lasers and Electro-Optics, ICALEO 2007

Y2 - 1 July 2007

ER -

Stress distributions in multilayer laser deposited Waspaloy parts measured using neutron diffraction

Abstract

Conference

UN SDGs

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