Heat treatment to anneal residual stresses during additive manufacturing
Abstract
The present disclosure relates to a method of producing a product through additive manufacturing with heat treatment. The method involves using a fusing beam to melt powder particles disposed on a substrate, where the fusing beam is impressed with a two dimensional pattern containing image information from a first layer to be printed. The fused powder particles are then heat treated with a beam impressed with an additional two dimensional pattern. The additional two dimensional pattern has image information from the first layer to achieve heat treatment of the product. The heat treatment is completed prior to laying down additional new layers of material. The heat treatment is an annealing operation. The method may further involve providing a new layer of powdered material on top of the layer of fused powder particles subsequent to the heat treatment, and repeating the melting and heat treating operations in a layer-by-layer fashion using the two dimensional pattern and the additional two dimensional pattern, until the part is completed.
- Inventors:
- Issue Date:
- Research Org.:
- Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1805412
- Patent Number(s):
- 10898954
- Application Number:
- 16/794,835
- Assignee:
- Lawrence Livermore National Security, LLC (Livermore, CA)
- Patent Classifications (CPCs):
-
B - PERFORMING OPERATIONS B22 - CASTING B22F - WORKING METALLIC POWDER
B - PERFORMING OPERATIONS B33 - ADDITIVE MANUFACTURING TECHNOLOGY B33Y - ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- DOE Contract Number:
- AC52-07NA27344
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 02/19/2020
- Country of Publication:
- United States
- Language:
- English
Citation Formats
DeMuth, James A., Bayramian, Andrew James, El-Dasher, Bassem S., Farmer, Joseph C., Kramer, Kevin J., and Rubenchik, Alexander M. Heat treatment to anneal residual stresses during additive manufacturing. United States: N. p., 2021.
Web.
DeMuth, James A., Bayramian, Andrew James, El-Dasher, Bassem S., Farmer, Joseph C., Kramer, Kevin J., & Rubenchik, Alexander M. Heat treatment to anneal residual stresses during additive manufacturing. United States.
DeMuth, James A., Bayramian, Andrew James, El-Dasher, Bassem S., Farmer, Joseph C., Kramer, Kevin J., and Rubenchik, Alexander M. Tue .
"Heat treatment to anneal residual stresses during additive manufacturing". United States. https://www.osti.gov/servlets/purl/1805412.
@article{osti_1805412,
title = {Heat treatment to anneal residual stresses during additive manufacturing},
author = {DeMuth, James A. and Bayramian, Andrew James and El-Dasher, Bassem S. and Farmer, Joseph C. and Kramer, Kevin J. and Rubenchik, Alexander M.},
abstractNote = {The present disclosure relates to a method of producing a product through additive manufacturing with heat treatment. The method involves using a fusing beam to melt powder particles disposed on a substrate, where the fusing beam is impressed with a two dimensional pattern containing image information from a first layer to be printed. The fused powder particles are then heat treated with a beam impressed with an additional two dimensional pattern. The additional two dimensional pattern has image information from the first layer to achieve heat treatment of the product. The heat treatment is completed prior to laying down additional new layers of material. The heat treatment is an annealing operation. The method may further involve providing a new layer of powdered material on top of the layer of fused powder particles subsequent to the heat treatment, and repeating the melting and heat treating operations in a layer-by-layer fashion using the two dimensional pattern and the additional two dimensional pattern, until the part is completed.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jan 26 00:00:00 EST 2021},
month = {Tue Jan 26 00:00:00 EST 2021}
}
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