NUMERICAL SIMULATION OF THE FORMING PROCESS BY REVERSE EXTRUSION OF SMALL DIAMETER TUBES

Laurenţiu STOICA, Gheorghe ACHIMAŞ, Alina Florentina BUDAI, Alin SĂCARĂ

Abstract


As compared with other processes, the reverse extrusion ensures high productivity, high material utilization and reducing workload. The finished part presents superior mechanical characteristics due to the cold hardening of the extruded material. In order to determine the parameters of the inverse extrusion operation of the "tube", the numerical simulation of the forming process was carried out. For this purpose, the finite element analysis program Deform-2D was used [2]. Deform-2D provides a graphical user interface for preparing the model, through which the parameters of the forming process can be easily specified. This paper presents the steps performed in order to develop the finite element model of a reverse cold extrusion operation.

Key words: reverse extrusion, small diameter tubes, and finite element simulation


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References


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