Friction welding of cast iron and stainless steels

Abstract

Ductile cast iron (FCD450) and stainless steels (SUS304, SUS430) were friction-welded. Heat content of each joint was measured by calorimetry and tensile test was made.No defect was observed in joints of cast irons. In the present study, a simplified model has been proposed for calculating the heat input rate in dissimilar joints of friction welding using one dimensional thermal conductivity equation. If the burn-off rate is taken into consideration, a correlation between this heat input rate and tensile property of joints examined appeared to exist. In addition, the values obtained by modeling and measured ones were in good agreement.