International Science and Technology Journal

The welding ability of cast iron is a complex issue for many engineers and welders due to the inherited characteristics of gray cast iron such as the fragility and thermal properties resulting from the high percentage of carbon. This study is an attempt to conduct a critical theoretical investigation of published studies on the potential of gray cast iron for welding and to find and determine the main factors affecting the quality of welding. The scientific survey of published researches shows the failure to determine the comprehensive vision of the factors affecting the welding process, which led to a conflict in the results of the studies and form a vague image to the engineers and specialists on the results of studies and who are interested in this type of studies. In this study, these factors were identified as follows (the welding process procedure, the metallurgical factor, the heat treatment, and the feeding wires). These factors have been highlighted to determine the importance of each factor and their overlap with each other and their impact on some of them. The study was presented as a reference manual for researchers, engineers and technicians to be guided before starting the welding process or in case of failure and collapse of the final welding product