Development of CVT Pulley Piston Featuring Variable Thickness and Work-Hardening Technologies

Honda has applied two innovative forming methods to the CVT pulley piston production - indentation forming and thickness addition by compression. As a result, an increased and uniform thickness throughout the product has been ensured during the press forming of hot-rolled steel sheets. Is is also possible to achieve selective thickness additions, double the original, wherever required. The work hardening effect eliminates post-heat treatment.