A method of spin forming oblique end cones of a catalytic converter

摘要

The present invention is generally directed towards a catalytic converter (10) installed in the motor vehicles. More specifically to a method of forming the end portion (22,24) of the catalytic converter using the spinform technique. The catalytic converter (10) defines a central axis (26) and is rotated around the central axis (26). At least one roller is placed perpendicular to the central axis (26). The roller moves in a transverse direction with respect to the central axis (26) such that the axis (28) of the end portion (22) is at an angle ( r ) with respect to the central axis (26). The roller may be moved under programmed control.