eprintid: 18255
rev_number: 2
eprint_status: archive
userid: 1
dir: disk0/00/01/82/55
datestamp: 2024-06-04 14:10:25
lastmod: 2024-06-04 14:10:25
status_changed: 2024-06-04 14:02:00
type: article
metadata_visibility: show
creators_name: Janga, V.S.R.
creators_name: Awang, M.
title: The influence of coefficient of friction in thermal prediction of refill friction stir spot welding process of AA7075-T6: Einfluss des Reibungskoeffizienten auf die thermische Abschätzung des Nachfüllreibungs-Rührreibpunktschwei�prozesses von AA7075-T6
ispublished: pub
keywords: End effectors; Finite element method; Forecasting; Friction; Joining; Numerical models; Spot welding; Welds, Contact modeling; Coulomb friction coefficient; Element models; Finite element modeling; Friction coefficients; Friction stir spot welding; Joining process; Refill friction stir spot welding; Shear-friction; Simulation of joining process, Thermoanalysis
note: cited By 0
abstract: Numerical modelling of refill friction stir spot welding helps in the deep investigation of physics involved in the joining process. The current study investigates four variants of contact models and their influence on thermal prediction in the process. The contact models with constant shear and coulomb friction coefficients and temperature-dependent shear and coulomb friction coefficients were used in the numerical models to investigate the influence of friction coefficients in the prediction of thermal cycles in refill friction stir spot welding. The results from the numerical model are compared and validated with the experimental results from a previous study. The contact model with temperature-dependent coulomb friction coefficient was concluded to be more reliable when compared to the other three contact models. The temperature for this contact model at the centre of the weld is 505 °C, which differs from the temperature recorded in the experiment by 2 . The peak temperatures of numerical models with constant coulomb and shear friction coefficients differ from the experimental temperature at the weld centre by 5.17  and 16.8  respectively. © 2023 Wiley-VCH GmbH.
date: 2023
publisher: John Wiley and Sons Inc
official_url: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85171308255&doi=10.1002%2fmawe.202100369&partnerID=40&md5=d0c1041d80e48305bee0d35eb0576d62
id_number: 10.1002/mawe.202100369
full_text_status: none
publication: Materialwissenschaft und Werkstofftechnik
volume: 54
number: 9
pagerange: 1068-1074
refereed: TRUE
issn: 09335137
citation:   Janga, V.S.R. and Awang, M.  (2023) The influence of coefficient of friction in thermal prediction of refill friction stir spot welding process of AA7075-T6: Einfluss des Reibungskoeffizienten auf die thermische Abschätzung des Nachfüllreibungs-Rührreibpunktschwei�prozesses von AA7075-T6.  Materialwissenschaft und Werkstofftechnik, 54 (9).  pp. 1068-1074.  ISSN 09335137