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Title: Heat treatment to anneal residual stresses during additive manufacturing

Abstract

An additive manufacturing system having a heat source for melting powder particles in a desired shape and pattern to produce a product. A secondary heat source is used for heat treating the product to achieve heat treatment. The secondary heat source is used to peen or anneal residual stresses caused by the additive manufacturing process.

Inventors:
; ; ; ; ;
Issue Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1650756
Patent Number(s):
10618111
Application Number:
15/008,989
Assignee:
Lawrence Livermore National Security, LLC (Livermore, CA)
Patent Classifications (CPCs):
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02P - CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
B - PERFORMING OPERATIONS B22 - CASTING B22F - WORKING METALLIC POWDER
DOE Contract Number:  
AC52-07NA27344
Resource Type:
Patent
Resource Relation:
Patent File Date: 01/28/2016
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., 2020. 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/1650756.
@article{osti_1650756,
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 = {An additive manufacturing system having a heat source for melting powder particles in a desired shape and pattern to produce a product. A secondary heat source is used for heat treating the product to achieve heat treatment. The secondary heat source is used to peen or anneal residual stresses caused by the additive manufacturing process.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2020},
month = {4}
}

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Works referenced in this record:

Multiple material systems for selective beam sintering
patent, July 1990


Method for selective laser sintering with layerwise cross-scanning
patent, October 1992