[Back]

M. Plancak, D. Movrin, I. Kacmarcik, A. Ivanisevic, M. Tolnay, M.N. Durakbasa:
"Manufacturing Of Vital Parts By Rotary Forging";
Talk: 2nd International Conference "NEW TECHNOLOGIES NT-2015" Development and Application, Mostar - Bosnien und Herzegowina; 04-24-2015 - 04-25-2015; in: "Proceedings - Zbornik New Technologies "NT-2015"", Society for Robotics of Bosnia and Herzegovina, 1 (2015), ISSN: 2303-5668; 104 - 108.

Cross - joint component is a vital element which is integrated in many mechanical engineering
transmission systems. It transmits rotational movement in the transmission chain and it is loaded by high bending and shear stresses. There exist high requirements in terms of mechanical properties of cross-joint, which is understandable having in mind its important and responsible role in many mechanical engineering assemblies. Current paper presents one incremental method - orbital (or rotary) forging - which is relatively new technology for production of cross - joint. Orbital forging is an incremental bulk metal forming operation in which billet is placed at lower die whereas upper die, which performs rotational movement, is inclined for a small angle in respect to lower die . In most usual case, upper die also executes axial movement toward lower die, pressing the billet, but in some process modifications vice versa option has been also employed. Advantages and drawbacks, as well as main process parameters of orbital forging are presented and discussed. In concrete case, mechanical properties of one cross-joint part made by orbital forging process has been determined and compared with the component manufactured by classical forging. Relevant conclusions have been made