<abstract xmlns="http://www.w3.org/1999/xhtml"><p>This work demonstrates the numerical modelling of thermal dispersion accompanying the first stage of the friction stir alloying process. It is very important to recognise the temperature field in the modified workpiece in order to identify the zones where the physical material properties are changing. The temperature gradient leads to a drop of yield strength of the material and, as a consequence, the occurrence of the possibility of plastic flow around the tool. An attempt has been made to analyse the axisymmetric thermal problem described by a Fourier equation with an internal heat source in which the heat is derived only from work of frictional forces occurring between the workpiece and the tool material. The example under consideration focuses on the production of an Al-TiC composite using FSA technology. Macrostructure images of the composite and the simulation results confirm the correctness of the applied mathematical model, where the obtained temperature field corresponds with specific FSA zones.</p></abstract>

This work demonstrates the numerical modelling of thermal dispersion accompanying the first stage of the friction stir alloying process. It is very important to recognise the temperature field in the modified workpiece in order to identify the zones where the physical material properties are changing. The temperature gradient leads to a drop of yield strength of the material and, as a consequence, the occurrence of the possibility of plastic flow around the tool. An attempt has been made to analyse the axisymmetric thermal problem described by a Fourier equation with an internal heat source in which the heat is derived only from work of frictional forces occurring between the workpiece and the tool material. The example under consideration focuses on the production of an Al-TiC composite using FSA technology. Macrostructure images of the composite and the simulation results confirm the correctness of the applied mathematical model, where the obtained temperature field corresponds with specific FSA zones.

Numerical Simulation of Temperature Distribution during the First Stage of the Friction Stir Alloying Process

Institute of Applied Mechanics, Faculty of Mechanical Engineering

Technical Transactions

This work is licensed under the Creative Commons Attribution-ShareAlike 4.0 Public License.

This work demonstrates the numerical modelling of thermal dispersion accompanying the first stage of the friction stir alloying process. It is very important...

Numerical Simulation of Temperature Distribution during the First Stage of the Friction Stir Alloying Process

Publié en ligne: 21 mai 2020

Pages: 179 - 190

Reçu: 22 juin 2018

DOI: https://doi.org/10.4467/2353737XCT.18.109.8804

Mots clés
FSA, temperature field, Al-TiC composite

© 2020 Przemysław Nosal et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-ShareAlike 4.0 Public License.

Numerical Simulation of Temperature Distribution during the First Stage of the Friction Stir Alloying Process

Publié en ligne: 21 mai 2020

Pages: 179 - 190

Reçu: 22 juin 2018

DOI: https://doi.org/10.4467/2353737XCT.18.109.8804

Mots clésFSA, temperature field, Al-TiC composite

© 2020 Przemysław Nosal et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-ShareAlike 4.0 Public License.

Mots clés
FSA, temperature field, Al-TiC composite