engleski

FINITE ELEMENT STUDY OF COMBINED FORWARD-BACKWARD EXTRUSION THE BODY OF AUTOMATIC VALVE

In this paper it is analysed the process of simultaneous forward-backward extrusion the body of automatic valve for central heating installations. In metal forming industries, many products are to be formed in large number and with highly accurate dimensions. To save energy and material it is necessary to understand the behaviour of material and to know the intermediate shapes of the formed parts and the mutual effects between tool and formed part during the forming process. The design of the tool and the manufacturing procedures are increasingly carried out by computer aided design and manufacturing (CAD/CAM). These procedures are normally baised on the numerical methods which take into account all physical conditions of the deformed material during the process. For this purpose finite element method (FEM) have been developed in the past in different ways. This paper highlights the finite element approach and simulation as a very useful technique in studding, where there is a generally close correlation in the load results obtained with FEM and the experimental one.

metal forming; extrusion; finite element method; simulation

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