Abstract
The present paper considers algorithmic optimisation of autogenous manual tungsten inert gas (TIG) welding of four different types of joint using stainless steel sheet of varying thickness from 0.9 to 2.0 mm. First a literature survey is presented, experimental work and the equipment used are described, welding conditions are stated, and the welded joints are represented. Then, experimental results are analysed, assessed, and presented in tables and graphs. Mathematical modelling for the calculation of maximum, minimum, and optimum values of welding current and welding voltage as functions of sheet thickness is described for the four joints. Finally, algorithmic optimisation is described for a particular case, namely, a
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