Double-electrode submerged arc welding (DE-SAW) is an innovative process to achieve the same metal deposition rate at reduced heat input. To maximally take advantage of this new capability, the heat input needed to produce acceptable welds needs to be reduced. A joint gap is successfully introduced to reduce the required heat input but it introduces variations affecting currents/heat input. To minimize the resultant variations in currents and resultant welds, the process is modeled and a multivariable predictive control algorithm is developed to control the currents at desired levels. Experiments verified the effectiveness of the resultant feedback controlled DE-SAW process.
|Number of pages
|Journal of Manufacturing Processes
|Published - Oct 2014
Bibliographical noteFunding Information:
This work was funded by the Navy under contracts N65538-08-M-0049 and N00024-09-C-4140 and Kentucky Cabinet for Economic Development (CED) Office of Commercialization and Innovation through Kentucky Science and Engineering Corp. under agreements KSTC-184-512-08-038 and KSTC-184-512-09-067. The approval for public release from the Navy (5720/00DT 2012-0854) is greatly appreciated.
© 2014 The Society of Manufacturing Engineers. Published by Elsevier Ltd. All rights reserved.
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- Submerged arc welding (SAW) filet joint double-electrode (DE) predictive control heat input
ASJC Scopus subject areas
- Strategy and Management
- Management Science and Operations Research
- Industrial and Manufacturing Engineering