An analytical model of heat generation for eccentric cylindrical pin in friction stir welding | Zendy

Ahmed R. S. Essa | Zendy; Mohamed M. Z. Ahmed | Zendy; Abdelkarim Yousif Mohamed | Zendy; Ahmed E. El-Nikhaily | Zendy

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An analytical model of heat generation for eccentric cylindrical pin in friction stir welding

Author(s) -

Ahmed R. S. Essa,

Mohamed M. Z. Ahmed,

Abdelkarim Yousif Mohamed,

Ahmed E. El-Nikhaily

Publication year - 2016

Publication title -

journal of materials research and technology

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.832

H-Index - 44

eISSN - 2214-0697

pISSN - 2238-7854

DOI - 10.1016/j.jmrt.2015.11.009

Subject(s) - eccentricity (behavior) , friction stir welding , materials science , welding , rotational speed , eccentric , rotation (mathematics) , alloy , mechanics , heat generation , deformation (meteorology) , aluminium , composite material , metallurgy , structural engineering , mechanical engineering , geometry , thermodynamics , physics , mathematics , engineering , political science , law

An analytical model for heat generation for eccentric cylindrical pin in friction stir welding was developed that utilizes a new factor based on the tool pin eccentricity. The proposed analytical expression is a modification of previous analytical models from the literature, which is verified and well matches with the model developed by previous researchers. Results of plunge force and peak temperature were used to validate the current proposed model. The cylindrical tool pin with eccentricities of 0, 0.2, and 0.8mm were used to weld two types of aluminum alloys; a low deformation resistant AA1050-H12, and a relatively high deformation resistant AA5754-H24 alloy. The FSW was performed at constant tool rotation speed of 600rpm and different welding speeds of 100, 300, and 500mm/min. Experimental results implied that less temperature is generated using eccentric cylindrical pin than cylindrical pin without eccentricity under the given set of FSW process conditions. Furthermore, numerical simulation results show that increasing the pin eccentricity leads to decrease in peak temperature

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