TITLE

Analytical Solution to Transient Temperature Field in Semi-Infinite Body Caused by Moving Ellipsoidal Heat Source

AUTHOR(S)
Ghosh, Aniruddha; Singh, N. K.; Chattopadhyaya, Somnath
PUB. DATE
July 2011
SOURCE
International Review of Mechanical Engineering;Jul2011, Vol. 5 Issue 5, p987
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Submerged Arc Welding process (SAW) provides high quality voluminous deposition process. It has lot of social and economical implications. Lot of critical input variables are involved in this process which are needed to control to get quality weld. Main input variables of this process are function of temperature distribution on the welded plates. Critical investigation of the transient temperature distribution is important for maintaining quality of the Submerged Arc welded plates. This paper makes an attempt to uncover an important domain of the studies of temperature distribution during submerged arc welding process. This analysis may pave the way for the application of micro structural modeling, thermal stress analysis, residual stress/distribution and simulation in welding process. Prediction of temperature variations of entire plates during welding is done through an analytical solution. It is derived from the transient multi dimensional heat conduction of semi infinite plate. The heat input that is applied on the plate is considered to be same amount of heat lost form electric arc. It is assumed that a moving double ellipsoidal heat source with Gaussian distribution is responsible for Submerged Arc Welding process for some input parametric settings. In the analysis it has been observed that the predicted temperature distribution values are in good agreement with the experimental results for a particular input parametric setting.
ACCESSION #
76125821

 

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