20th International Forgemasters Meeting - IFM 2017

Presented in this paper is a comparative analysis performed by means of technology simulation based on FEM method using DEFORM 3D tool. The following processes were analyzed: - forging on a hydraulic press between two dies according to conventional technology; - forging on a four-die radial forging machine (RFM); - forging on a forging press in a four-die forging device (FDFD) according to five different technologies; - combined forging on a forging press consisting of two-die forging and four-die forging in a FDFD. The presented analysis shows that the forging process performed in a FDFD in comparison to two-die forging on a press and to forging on a RFM results in a much better effect on distribution of stress, strain and temperature in a workpiece; it further contributes to elimination of metallurgical defects, makes it possible to forge low-ductility material and thus finally provides a better quality, higher good metal yield and increased production output. Comparison of the discussed technologies in terms of production output proved that the production output in case of forging in a FDFD at various forging modes is 1.6 to 3.0 times higher as compared to two-die forging process and also higher than the forging output of a RFM.