Title: Estimation of temperature distribution on submerged arc welded plates through conical heat distribution technique
Authors: Aniruddha Ghosh; Somnath Chattopadhyaya
Addresses: Government College of Engineering and Textile Technology, Berhampore, WB, Pin-742101, India. ' Department of ME & MME, ISM, Dhanbad, India
Abstract: Submerged arc welding (SAW) process is a high quality, very high deposition rate welding process. It has lot of social and economical implications. This paper makes an attempt to uncover an important area on studies of temperature distribution during submerged arc welding because this may pave the way for application of microstructure modelling, thermal stress analysis, residual stress/distribution and welding process simulation. Temperature variation of entire plates during welding is predicted through an analytical solution which is derived from the transient multi-dimensional heat conduction of semi-infinite plate. The heat input that is applied on the plate is exactly same amount of heat lost form electric arc. Electric arc is assumed to be a moving double conical heat source with Gaussian distribution for submerged arc welding process. Good agreement between the predicted temperature distribution values and measured temperature distribution values on submerged arc welded plates are observed.
Keywords: submerged arc welding; SAW; 3D Gaussian distribution; temperature distribution; multi-dimensional heat flow; numerical solutions; conical heat source; welded plates; heat transfer.
International Journal of Computational Materials Science and Surface Engineering, 2011 Vol.4 No.4, pp.281 - 291
Available online: 23 Feb 2012 *Full-text access for editors Access for subscribers Purchase this article Comment on this article