Design and Fabrication of a System for Silastic Silicone Rubber O-Ring

As the industrial importance of rubber part has grown constantly during the last three decades, so have intensive experimental and theoretical investigations of the basic nature, properties and mechanical parameters of this manufacturing process. The vast advantage of knowledge based on analysis has helped the ongoing transition in the application of rubber extrusion process from an art to a science. In this paper, we explain the design and fabrication of a system comprising of extrusion die and O-ring die for silastic silicone rubber products. The initial part of the paper shows the procedure for designing extrusion die for a compressive material like rubber by analytical method. This design is further analysed using software Pro/E and ANSYS. The results of analysis have proved the stresses are in safe limits. In the 2^nd part of the paper an attempt is made to fabricate an O-ring die for Silicone rubber.