A STUDY ON THE FORGING OF GEAR-LIKE COMPONENTS

This paper describes kinematically admissible velocity fields for forg ing of gear-like components such as involute spur gear, trapezoidal sp line, square spline, serration and trochoidal gear. Half pitch of each gear-like component was divided into several deformation zones with r espect to their tooth profile. A neutral surface has been used to repr esent the inward now of material during a forging operation by using a hollow billet with a flat punch. By using the suggested kinematically admissible velocity fields, the power requirements were successfully calculated and they were compared with experimental inspections. As a result, the suggested velocity fields are shown to be useful to predic t the forging load. The contour of neutral surface varied with the num ber of teeth.