Hybrid Metal Extrusion and Bonding (HYB) is a novel solid-state welding method for metals and alloys that utilises continuous extrusion as a technique to enable aluminium filler metal additions. In the present study, a new semi-analytical model for the heat generation during aluminium butt welding is presented. As a starting point, the classical Rosenthal thin plate solution for the pseudo-steady-state temperature distribution around a fully penetrating line source is invoked. Then, the associated heat generation is calculated by considering the individual contributions from the tip of the rotating pin, the pin shoulder, and the filler metal additions on the net power input. In a calibrated form, the model yields thermal efficiency factors that are in close agreement with those obtained from more sophisticated finite element analyses but with considerably less computational effort. © 2021 by the authors. Licensee MDPI, Basel, Switzerland.

A semi-analytical model for the heat generation during hybrid metal extrusion and bonding (Hyb) / Leoni, F.; Grong, Ø.; Ferro, P.; Berto, Filippo. - In: MATERIALS. - ISSN 1996-1944. - 14:1(2021), pp. 1-15. [10.3390/ma14010170]

A semi-analytical model for the heat generation during hybrid metal extrusion and bonding (Hyb)

Berto Filippo
2021

Abstract

Hybrid Metal Extrusion and Bonding (HYB) is a novel solid-state welding method for metals and alloys that utilises continuous extrusion as a technique to enable aluminium filler metal additions. In the present study, a new semi-analytical model for the heat generation during aluminium butt welding is presented. As a starting point, the classical Rosenthal thin plate solution for the pseudo-steady-state temperature distribution around a fully penetrating line source is invoked. Then, the associated heat generation is calculated by considering the individual contributions from the tip of the rotating pin, the pin shoulder, and the filler metal additions on the net power input. In a calibrated form, the model yields thermal efficiency factors that are in close agreement with those obtained from more sophisticated finite element analyses but with considerably less computational effort. © 2021 by the authors. Licensee MDPI, Basel, Switzerland.
2021
aluminum; analytical models; filler metals; fillers; heat generation; metallurgy; welding, aluminium fillers; computational effort; continuous extrusion; metals and alloys; pseudo steady state; semi-analytical model; solid-state welding; thermal efficiency, metal extrusion; aluminium butt welding; frictional heating; heat flow modelling; hybrid metal extrusion and bonding; thermal efficiency factor
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A semi-analytical model for the heat generation during hybrid metal extrusion and bonding (Hyb) / Leoni, F.; Grong, Ø.; Ferro, P.; Berto, Filippo. - In: MATERIALS. - ISSN 1996-1944. - 14:1(2021), pp. 1-15. [10.3390/ma14010170]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/1654434
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