Energy generation during friction stir spot welding (FSSW) of al 6061-T6 plates

M., Awang and V.H., Mucino (2009) Energy generation during friction stir spot welding (FSSW) of al 6061-T6 plates. In: Friction Stir Welding and Processing V -TMS 2009 Annual Meeting and Exhibition, 15 February 2009 through 19 February 2009, San Francisco, CA.

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Effective and reliable computational models would greatly enhance the study of energy dissipation during the friction stir spot welding (FSSW) process. Approaches for the computational modeling of the FSSW process, however, are still under development and much work is still needed, particularly the application of explicit finite element codes for a verifiable simulation. The objectives of this work are to develop a finite element modeling of FSSW of 6061-T6 aluminum alloy and analyze energy generation during the welding process. In this work, a three dimensional (3-D) finite element (FE) coupled thermal-stress model of FSSW process has been developed in Abaqus/Explicit code. The rate dependent Johnson-Cook material model is used for elastic plastic work deformations. Temperature profile and energy dissipation history of the FE model have been analyzed. The peak temperature at the tip of the pin and frictional dissipation energy are in close agreement with the experimental work by Gerlich et al. [1], with a difference of only about 5.1%.

Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: Alumina; Coupled circuits; Electric welding; Electron energy loss spectroscopy; Energy dissipation; Energy dissipators; Finite element method; Friction; Functional electric stimulation; Gas welding; Spot welding; Thermomechanical treatment; Three dimensional; Tribology; 6061-t6 aluminum alloys; Al 6061-T6; Computational modeling; Computational models; Elastic plastics; Energy generations; Explicit; Explicit finite element codes; Fe models; Finite element model; Finite elements; Finite-element modeling; Friction stir spot welding; Frictional dissipations; Johnson cooks; Material models; Peak temperatures; Rate dependents; Temperature profiles; Thermal-stress; Thermo-mechanical; Welding process; Friction stir welding
Subjects: T Technology > TJ Mechanical engineering and machinery
Departments / MOR / COE: Departments > Mechanical Engineering
Depositing User: Mr Helmi Iskandar Suito
Date Deposited: 02 Mar 2010 06:46
Last Modified: 19 Jan 2017 08:25

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