Numerical simulation of transient temperature in flash butt-welded axi-symmetric circular sections.
DOI:
https://doi.org/10.3329/jname.v10i1.8683Keywords:
Flash-butt welding, Finite-difference, Boundary conditions, weld-line, thermal historiesAbstract
Thermal history along the length of a circular section subjected to flash-butt welding was analyzed by the finite difference method. A onedimensional nonlinear thermal numerical simulation using a computational model based on the finite difference approach is formulated taking into consideration fusion zone (FZ) temperature as a measure of heat input, ambient and initial temperature of rod. Flexibility of physical characteristics such as bar length, diameter and temperature dependency of thermal properties and variation of boundary conditions were applied. Peak temperatures of 490°C and 410°C were computed for a 20 mm external diameter solid and hollow pipes respectively at distance 5 mm from weld line. Preheat temperatures of 200°C and 400°C resulted into a 41.1% and 89.3% increase respectively in peak temperature as compared with non preheat conditions. The predicted values from this model compared reasonably with experimentally obtained thermal histories.
Downloads
199
166
References
REFERENCES
Adams,Jr.,C.M.(1958) "Cooling rates and peak temperatures in fusion welding" Welding Journal, Vol.37(5), pp.210 - 215.
_____________________________________________________
Adedayo,S.M. and Adeyemi, M.B.(2000), " Temperature distribution in arc welded steel plates by finite-difference method", Journal of modeling, measurement and control. Vol.69(5).pp.23-42
_____________________________________________________
Boo,K.S. and Cho,H.S.(1990), " Transient temperature distributions in arc welding of finite thickness plates", Journal of Engineering Manufacture, Part B, Vol.204, pp.175 - 183.
_____________________________________________________
Brown, W.F., Mindlin,H., C.Y.Ho Aerospace Structural Metals Hanbook, CINDAS/USAF CRDA Handbooks Operation and Purdue University, West Lafayette,IN,USA,1993.
____________________________________________________
Carslaw H.S. and J.C. Jaeger, Conduction of heat in solids, University Press, Oxford, 1978.
____________________________________________________
Chapra, S.C., Raymond,P and Canak, Numerical methods for Engineers, McGraw - Hill Publishing company, 1985.
____________________________________________________
Dasko,J. Materials properties and manufacturing processes, John Wiley & Sons Inc, New York, 1966.
____________________________________________________
Radaj D.(1992) "Heat effects of welding - temperature field, residual stress distortion, springer. Verlag, Berlin.
____________________________________________________
Rong-Hua Y., Shih - Pin L. and Hong - Bin Y.(2003) "Journal of Marine Science and Technology Vol.11(4), pp.213 - 220
____________________________________________________
Rosenthal D.(1941), " Mathematical theory of heat distribution during cutting and welding" The welding journal; Vol.20(5), pp.93-103.
_____________________________________________________
Simsir C and C.H. Gur (2010) "Simulation of Quenching Process for predicting temperature, microstructure and residual stresses", Journal of Mechanical Engineering. Vol.56, pp.93 - 103.
_____________________________________________________
Tang W.,Guo X.,McClure J.C., Murr L,C., Nunes A. (1998) "Heat input and temperature distribution in friction stir welding" . Journal of Material Process. Manufacturing Science Vol. 7, pp.163 - 172
_____________________________________________________
Zhu, X.K. and Y.,J. Chao ( 2004 ) " Numerical simulation of transient temperature and residual stresses in friction stir welding of 304L, stainless steel " Journal of Materials Processing
Technology. Vol. 146. pp.263 -272. ____________________________________________________
Downloads
Published
How to Cite
Issue
Section
License
Please download the Copyright Transfer Agreement and send it after duly filled in.
Link to FaceBook
