Effect of Interlayer Cooling Time, Constraint and Tool Path Strategy on Deformation of Large Components Made by Laser Metal Deposition with Wire
Abstract
Laser metal deposition with wire (LMD-w) is a developing additive manufacturing (AM) technology that has a high deposition material rate and efficiency and is suitable for fabrication of large aerospace components. However, control of material properties, geometry, and residual stresses is needed before LMD-w technology can be widely adopted for the construction of critical structural components. In this study, we investigated the effect of interlayer cooling time, clamp constraints, and tool path strategy on part distortion and residual stresses in large-scale laser additive manufactured Ti-6Al-4V components using finite element method (FEM). The simulations were validated with the temperature and the distortion measurements obtained from a real LMD-w process. We found that a shorter interlayer cooling time, full clamping constraints on the build plates, and a bidirectional tool path with 180° rotation minimized part distortion and residual stresses and resulted in symmetric stress distribution.
- Publication Date:
- Research Org.:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
- Sponsoring Org.:
- USDOE Office of Energy Efficiency and Renewable Energy (EERE)
- OSTI Identifier:
- 1575834
- Alternate Identifier(s):
- OSTI ID: 1606835
- Grant/Contract Number:
- NFE-15-05725; AC05-00OR22725
- Resource Type:
- Published Article
- Journal Name:
- Applied Sciences
- Additional Journal Information:
- Journal Name: Applied Sciences Journal Volume: 9 Journal Issue: 23; Journal ID: ISSN 2076-3417
- Publisher:
- MDPI
- Country of Publication:
- Switzerland
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE; large-scale additive manufacturing; interlayer cooling time; process parameter optimization; part deformation; Ti-6Al-4V
Citation Formats
Lee, Yousub, Bandari, Yashwanth, Nandwana, Peeyush, Gibson, Brian. T., Richardson, Brad, and Simunovic, Srdjan. Effect of Interlayer Cooling Time, Constraint and Tool Path Strategy on Deformation of Large Components Made by Laser Metal Deposition with Wire. Switzerland: N. p., 2019.
Web. doi:10.3390/app9235115.
Lee, Yousub, Bandari, Yashwanth, Nandwana, Peeyush, Gibson, Brian. T., Richardson, Brad, & Simunovic, Srdjan. Effect of Interlayer Cooling Time, Constraint and Tool Path Strategy on Deformation of Large Components Made by Laser Metal Deposition with Wire. Switzerland. https://doi.org/10.3390/app9235115
Lee, Yousub, Bandari, Yashwanth, Nandwana, Peeyush, Gibson, Brian. T., Richardson, Brad, and Simunovic, Srdjan. Tue .
"Effect of Interlayer Cooling Time, Constraint and Tool Path Strategy on Deformation of Large Components Made by Laser Metal Deposition with Wire". Switzerland. https://doi.org/10.3390/app9235115.
@article{osti_1575834,
title = {Effect of Interlayer Cooling Time, Constraint and Tool Path Strategy on Deformation of Large Components Made by Laser Metal Deposition with Wire},
author = {Lee, Yousub and Bandari, Yashwanth and Nandwana, Peeyush and Gibson, Brian. T. and Richardson, Brad and Simunovic, Srdjan},
abstractNote = {Laser metal deposition with wire (LMD-w) is a developing additive manufacturing (AM) technology that has a high deposition material rate and efficiency and is suitable for fabrication of large aerospace components. However, control of material properties, geometry, and residual stresses is needed before LMD-w technology can be widely adopted for the construction of critical structural components. In this study, we investigated the effect of interlayer cooling time, clamp constraints, and tool path strategy on part distortion and residual stresses in large-scale laser additive manufactured Ti-6Al-4V components using finite element method (FEM). The simulations were validated with the temperature and the distortion measurements obtained from a real LMD-w process. We found that a shorter interlayer cooling time, full clamping constraints on the build plates, and a bidirectional tool path with 180° rotation minimized part distortion and residual stresses and resulted in symmetric stress distribution.},
doi = {10.3390/app9235115},
journal = {Applied Sciences},
number = 23,
volume = 9,
place = {Switzerland},
year = {Tue Nov 26 00:00:00 EST 2019},
month = {Tue Nov 26 00:00:00 EST 2019}
}
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https://doi.org/10.3390/app9235115
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Cited by: 22 works
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