Abstract: Injection moulding process is a vast and advantageous process in the field of science and technology. Injection moulding process gives birth to vast application which replaces not only industrial products and parts but also capture home appliances and the products of our day to day life. But from the technology point of view we are still using hit and trial methods. In industries, workmen and craftsmen who are engaged in these operations are only expertise but to a certain extent they are also dependent on hit and trial methods which sometimes increases the manufacturing cost of the product. There is a need to develop a technology which guides the designer that what methods he has to follow to design a particular product. There are basically three step in the injection moulding cycle. Firstly, design of sprue which are tapered to increase the rate of flow. Secondly, design of runner whose efficiency is pre-determined and fixed. Efficiency here refer to smoothness or least obstruction provided to the flow material. Thirdly, selection of the gate which pour the flow material finally into the cavity. Selection of gate is quite a difficult task for the designer; only skilled crafts-men can handle easily. Now again the problem arrives to assemble these the three steps according to the type of cavity. In this paper i tried to develop a system with the help of CAD/CAM which facilitates the user to work on injection moulding operations starting from the cavity to the selection of gates and then to the efficiency of runner and finally to sprue. This results time reduction in designing process and to a certain extent reduces manufacturing cost also.
Keywords: Moulding, Sprue, Lead time
Title: Gating System Design Optimization for Injection Moulding
Author: Dr. M P Singh, Akhilesh Jaguri
International Journal of Mechanical and Industrial Technology
ISSN 2348-7593 (Online)
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