The Effect of Current to Hardness, Microstructure and Toughness in Shielded Metal Arc Welding of Carbon Steel and Stainless Steel 304

This is a research on studying the effect of current towards mechanical properties in welding of carbon steel and stainless steel with shield metal arc welding. Mechanical properties consists of hardness, microstructure, and impact toughness. The data of the properties can be obtained from several testing procedure which are specifically designed for it. The test that going to be conducted are tensile test, hardness test, and microstructure. As from the study, the author has decided the current to start the experiment. As for this research, it will be for 2 main materials in the industry which is carbon steel and stainless steel and the result of this research will be very useful to the manufacturing industry.