Effects of Welding Current Gas Flow Rate and Welding Voltage on Thermal Conductivity Using Response Surface Methodology

Abstract

In this experimental work, the effects of welding current, gas flow
rate and welding voltage on thermal conductivity using RSM were
studied, and the use of numerical models to further improve
understanding of welding properties is of great importance to the
welding researchers. RSM is a very significant technique applied
in the Manufacturing, Oil and Gas, Metallurgical and Materials
industries that employ mathematical and artificial intelligent
methods. This paper is on Tungsten inert gas process parameters.
The main input variables considered are welding voltage, welding
current and gas flow rate. The response parameter is thermal
conductivity. The statistical design of the experiment was carried
out 20 times with 5 weld specimens per experiment, using the
central composite design matrix. The response was measured and
recorded. Gas Flow Rate of 10Lit/min, Voltage of 9Volts, and
Current of 160Amp results in thermal conductivity of
42.96123w/m.