期刊名称：Lecture Notes in Engineering and Computer Science
印刷版ISSN：2078-0958
电子版ISSN：2078-0966
出版年度：2018
卷号：2237&2238
页码：634-638
出版社：Newswood and International Association of Engineers
摘要：Arc welding processes are extensively used in
variety of fabrication works. The process however involves
localised melting at the faying surfaces. This results in rapid
heat dissipation to the neighbouring cold area of the work
pieces. The rapid cooling cycle brings about internal as well
as external changes. On one side it causes metallurgical
changes and formation of different zones inside the weldment.
On the other because of differential cooling rate it causes
distortion in the physical shape of the weld. Out of a number
of different types of distortion, angular distortion is the most
critical as it not only affects the aesthetics but also results in
the misfit of the components with parent structure. It should
therefore be the endeavour of the welding system to keep
angular distortion to its minimum. The present investigation
work has been carried out to analyse the effects of various
welding input parameters on angular distortion. Low carbon
alloy steel has been selected as a research material because of
its widespread use in fabrication industry. A mathematical
equation has been developed by using statistical technique of
central composite face centred methodology. The model has
been optimised by using response surface methodology. It is
expected that the research work carried out shall be useful for
industry and for further advanced studies on the subject.
