Abstract
The purpose of the present paper is to characterize and optimize the orbital friction welding (FW) parameters which lead to a sound joint quality of eutectoid steel bars. To optimize the weld microstructure, the phase transformations taking place in the FW of eutectoid steel is studied and the influence of peak temperature and plastic deformation of austenite on the continuous transformation behaviour are investigated. It is also demonstrated that modelling of FW depends entirely on the frictional heat flow term, which can be estimated with an inverse heat transfer analysis. By developing 3-D finite element models based on the estimated frictional heat, the temperature profile, axial shortening, flash formation, microstructure evolution during FW and the size of the heat-affected zone are effectively studied.
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Maalekian, M. Granjon Prize Competition 2008 Joint Winner — Category A: “Joining and Fabrication Technology” Characterization and Optimization of Orbital Friction Welding of High Carbon Steel Bars. Weld World 53, R109–R123 (2009). https://doi.org/10.1007/BF03266716
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DOI: https://doi.org/10.1007/BF03266716