Gas metal arc welding (GMAW) process is an important
component in many industrial operations. The research
on controlling GMAW metal transfer modes is
essential to high quality welding procedures. The
GMA welding parameters are the most important factors
affecting the quality, productivity and cost of welding
joint [1,2]. Weld bead size and shape are important
considerations for design and manufacturing engineers
in the fabrication industry. In fact, weld geometry directly
affects the complexity of weld schedules and thereby
the construction and manufacturing costs of steel
structures and mechanical devices