Due to their fine-grained structure and high strength values, IS460MC steels can be employed in harsh environments, such as offshore structures. The fine-grained structure of this material, which gives it its pleasing quality, must not be damaged during the welding process in order for it to be useful. In this investigation, two different welding currents and two different Argon-CO2 ratio combinations were used to MAG welding of S460MC steel plates. The weld joints were then subjected to tensile, bending, microhardness, macro and microstructure analysis, and testing to determine the impact of the factors on the structure and mechanical characteristics of the welding. As a result of the investigations, it was seen that the increase in the welding current and the CO2 ratio caused the grain coarsening of the welding metal and the heat-affected zone. In addition, it was determined that the increase in welding current and CO2 ratio increased the hardness in these regions and decreased the yield and tensile strength.

Due to the high mechanical strength of the metals used in implant manufacture, which makes them difficult to work with using other machining techniques, EDM is frequently employed in the production of implants. In this study, the effect of powder ratio and other EDM parameters used in the machining of CrCoMo alloy, which used in implant production widely, with powder added EDM on the surface roughness of the machined part was investigated through the response surface methodology. AISI 316L stainless steel was chosen as the electrode material, and Ti6V4Al was chosen as the additive powder, taking into account their biocompatibility properties. Using a Taguchi L16 array, an experimental design was created by selecting 4 levels for each parameter of additive ratio, discharge current, Ton, and Toff. The response surface method was used, along with the experimental data, to estimate how the parameters affected Ra and Rz.