CAE Analysis of Effects of Conditions in Spinning Forming on Shape Defects of Automotive Exhaust Part

Abstract

The experiments were conducted on pipe diameter reduction by spinning forming process with ferritic stainless steels. The target shapes of this study are the automotive exhaust parts, such as catalytic converters or sub-mufflers. Effects of the several forming condition factors on the geometrical property or defects of the parts are clarified. Computer aided engineering (CAE) simulation model was also developed for spinning forming. The calculated results were in good agreement with actual specimens not only in thickness distribution but also in shape of buckling defect. The results suggest that CAE simulation could be a helpful tool to obtain optimum forming conditions.