Effect of inter-layer cooling time on distortion and mechanical properties in metal additive manufacturing

Y. K. Bandari; Y. S. Lee; P. Nandwana; B. S. Richardson; A. I. Adediran; L. J. Love

Effect of inter-layer cooling time on distortion and mechanical properties in metal additive manufacturing

Y. K. Bandari, Y. S. Lee, P. Nandwana, B. S. Richardson, A. I. Adediran, L. J. Love

Research output: Contribution to conference › Paper › peer-review

6 Scopus citations

Abstract

Laser Metal Deposition with wire (LMD-w) is one of the novel Direct Energy Deposition (DED) processes that is gaining the attention of various industries, especially aerospace, due to the potential cost and lead time reductions for complex parts. However, subjects of development include optimization of process parameters (for example laser power, wire feed speed, robotic travel speed, inter-layer cooling time etc.) for large scale adaption of this process. These parameters influence residual stress which potentially results in distortion and subsequent mechanical properties. Inter-layer cooling time is one of the main influences on production volume and is typically used to help control the cooling conditions to mitigate part distortion. Therefore, this paper is aimed at investigating different inter-layer cooling times on distortion and resulting mechanical properties of the parts produced by LMD-w. Distortion of deposited Ti-6Al-4V walls was measured automatically using a laser scanner, which was attached to the robotic arm itself. Finally, suitable recommendations are discussed to optimize the inter-layer cooling time to produce parts with desired mechanical properties.

Original language	English
Pages	425-437
Number of pages	13
State	Published - 2020
Event	29th Annual International Solid Freeform Fabrication Symposium - An Additive Manufacturing Conference, SFF 2018 - Austin, United States Duration: Aug 13 2018 → Aug 15 2018

Conference

Conference	29th Annual International Solid Freeform Fabrication Symposium - An Additive Manufacturing Conference, SFF 2018
Country/Territory	United States
City	Austin
Period	08/13/18 → 08/15/18

Funding

The research was sponsored by the US Department of Energy, Office of Energy Efficiency and Renewable Energy, Advanced Manufacturing Office under contract DE-AC05-15 00OR22725 with UT-Battelle, LLC. This work is also supported in part by Cooperative Research and Development Agreement with GKN Aerospace, under contract No. NFE-15-05725. The research was sponsored by the US Department of Energy, Office of Energy Efficiency and Renewable Energy, Advanced Manufacturing Office under contract DE-AC05- 15 00OR22725 with UT-Battelle, LLC. This work is also supported in part by Cooperative Research and Development Agreement with GKN Aerospace, under contract No. NFE-15- 05725.

Keywords

3-D Printing
Additive Layered Manufacturing
Direct Energy Deposition
Distortion
Laser Metal Deposition with wire
Laser Scanner
Residual Stress
Ti-6Al-4V

Cite this

Bandari, Y. K., Lee, Y. S., Nandwana, P., Richardson, B. S., Adediran, A. I., & Love, L. J. (2020). Effect of inter-layer cooling time on distortion and mechanical properties in metal additive manufacturing. 425-437. Paper presented at 29th Annual International Solid Freeform Fabrication Symposium - An Additive Manufacturing Conference, SFF 2018, Austin, United States.

@conference{54df056318564734b6d0bb1f59484f1b,

title = "Effect of inter-layer cooling time on distortion and mechanical properties in metal additive manufacturing",

abstract = "Laser Metal Deposition with wire (LMD-w) is one of the novel Direct Energy Deposition (DED) processes that is gaining the attention of various industries, especially aerospace, due to the potential cost and lead time reductions for complex parts. However, subjects of development include optimization of process parameters (for example laser power, wire feed speed, robotic travel speed, inter-layer cooling time etc.) for large scale adaption of this process. These parameters influence residual stress which potentially results in distortion and subsequent mechanical properties. Inter-layer cooling time is one of the main influences on production volume and is typically used to help control the cooling conditions to mitigate part distortion. Therefore, this paper is aimed at investigating different inter-layer cooling times on distortion and resulting mechanical properties of the parts produced by LMD-w. Distortion of deposited Ti-6Al-4V walls was measured automatically using a laser scanner, which was attached to the robotic arm itself. Finally, suitable recommendations are discussed to optimize the inter-layer cooling time to produce parts with desired mechanical properties.",

keywords = "3-D Printing, Additive Layered Manufacturing, Direct Energy Deposition, Distortion, Laser Metal Deposition with wire, Laser Scanner, Residual Stress, Ti-6Al-4V",

author = "Bandari, {Y. K.} and Lee, {Y. S.} and P. Nandwana and Richardson, {B. S.} and Adediran, {A. I.} and Love, {L. J.}",

note = "Publisher Copyright: {\textcopyright} Solid Freeform Fabrication 2018: Proceedings of the 29th Annual International Solid Freeform Fabrication Symposium - An Additive Manufacturing Conference, SFF 2018. All Rights Reserved.; 29th Annual International Solid Freeform Fabrication Symposium - An Additive Manufacturing Conference, SFF 2018 ; Conference date: 13-08-2018 Through 15-08-2018",

year = "2020",

language = "English",

pages = "425--437",

}

Bandari, YK, Lee, YS , Nandwana, P, Richardson, BS, Adediran, AI & Love, LJ 2020, 'Effect of inter-layer cooling time on distortion and mechanical properties in metal additive manufacturing', Paper presented at 29th Annual International Solid Freeform Fabrication Symposium - An Additive Manufacturing Conference, SFF 2018, Austin, United States, 08/13/18 - 08/15/18 pp. 425-437.

Effect of inter-layer cooling time on distortion and mechanical properties in metal additive manufacturing. / Bandari, Y. K.; Lee, Y. S.; Nandwana, P. et al.
2020. 425-437 Paper presented at 29th Annual International Solid Freeform Fabrication Symposium - An Additive Manufacturing Conference, SFF 2018, Austin, United States.

Research output: Contribution to conference › Paper › peer-review

TY - CONF

T1 - Effect of inter-layer cooling time on distortion and mechanical properties in metal additive manufacturing

AU - Bandari, Y. K.

AU - Lee, Y. S.

AU - Nandwana, P.

AU - Richardson, B. S.

AU - Adediran, A. I.

AU - Love, L. J.

N1 - Publisher Copyright: © Solid Freeform Fabrication 2018: Proceedings of the 29th Annual International Solid Freeform Fabrication Symposium - An Additive Manufacturing Conference, SFF 2018. All Rights Reserved.

PY - 2020

Y1 - 2020

N2 - Laser Metal Deposition with wire (LMD-w) is one of the novel Direct Energy Deposition (DED) processes that is gaining the attention of various industries, especially aerospace, due to the potential cost and lead time reductions for complex parts. However, subjects of development include optimization of process parameters (for example laser power, wire feed speed, robotic travel speed, inter-layer cooling time etc.) for large scale adaption of this process. These parameters influence residual stress which potentially results in distortion and subsequent mechanical properties. Inter-layer cooling time is one of the main influences on production volume and is typically used to help control the cooling conditions to mitigate part distortion. Therefore, this paper is aimed at investigating different inter-layer cooling times on distortion and resulting mechanical properties of the parts produced by LMD-w. Distortion of deposited Ti-6Al-4V walls was measured automatically using a laser scanner, which was attached to the robotic arm itself. Finally, suitable recommendations are discussed to optimize the inter-layer cooling time to produce parts with desired mechanical properties.

AB - Laser Metal Deposition with wire (LMD-w) is one of the novel Direct Energy Deposition (DED) processes that is gaining the attention of various industries, especially aerospace, due to the potential cost and lead time reductions for complex parts. However, subjects of development include optimization of process parameters (for example laser power, wire feed speed, robotic travel speed, inter-layer cooling time etc.) for large scale adaption of this process. These parameters influence residual stress which potentially results in distortion and subsequent mechanical properties. Inter-layer cooling time is one of the main influences on production volume and is typically used to help control the cooling conditions to mitigate part distortion. Therefore, this paper is aimed at investigating different inter-layer cooling times on distortion and resulting mechanical properties of the parts produced by LMD-w. Distortion of deposited Ti-6Al-4V walls was measured automatically using a laser scanner, which was attached to the robotic arm itself. Finally, suitable recommendations are discussed to optimize the inter-layer cooling time to produce parts with desired mechanical properties.

KW - 3-D Printing

KW - Additive Layered Manufacturing

KW - Direct Energy Deposition

KW - Distortion

KW - Laser Metal Deposition with wire

KW - Laser Scanner

KW - Residual Stress

KW - Ti-6Al-4V

UR - http://www.scopus.com/inward/record.url?scp=85075961320&partnerID=8YFLogxK

M3 - Paper

AN - SCOPUS:85075961320

SP - 425

EP - 437

T2 - 29th Annual International Solid Freeform Fabrication Symposium - An Additive Manufacturing Conference, SFF 2018

Y2 - 13 August 2018 through 15 August 2018

ER -

Effect of inter-layer cooling time on distortion and mechanical properties in metal additive manufacturing

Abstract

Conference

Funding

Keywords

Other files and links

Fingerprint

Cite this