Theory of materials processing/welding
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We numerically model heat and fluid flow during materials processing, particularly welding. We specialize in (a) improving reliability of results by optimizing uncertain model parameters, (b) tailoring processed material attributes using population based optimization algorithms, and (c) embedding physicochemical processes to make models realistic. Resulting simulations of geometry,
composition and structure of welds/materials solve
important problems. |
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Flow and temperature field in friction stir welding |
Keyhole mode welding |
Weld pool temperature and velocity fields |
Liquid metal flow and free surface shape |
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Bead shape development in GMA welding |
Inclusion motion in the weld pool |
Fillet weld development and thermal cycle |
Monte Carlo simulation of isothermal grain growth |
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Grain growth during welding of Ti-6Al-4V |
Cooling during spot welding |
Heating and cooling of spot weld surface |
Phase transformation during welding of 1005 steel |
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User friendly, powerful, welding models for non-specialists Click on an image below to learn the capabilities of our numerical models of welding. Review various case studies and experience how the models can help to better understand both the welding process and the welds. |
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Heat and materials flow in friction stir welding |
Heat and fluid flow in Keyhole mode laser welding |
Heat and fluid flow in Key-hole mode e-beam welding |
Heat and fluid flow in GTA, laser or e-beam welding |
Click on a topic below to view/read a selection of our
papers
Contact email: debroy@psu.edu