CONCEPTUAL DESIGN OF PATTERN TO REPLACE INVESTMENT CASTING

Abstract

Our this project is based on the alternative solution of the precision investment casting process , which is very slow in production process and vary costly process due to large manual labour and loss of wax during the casting process. The demerits of precision investment casting develop the need of development of new method of casting which can replace precision casting and remove its demerits. In our project we have proposed a new conceptual design of pattern of casting which the loose-piece and piece- wise pattern
manufacturing process to replace precision investment casting process. There is an object that has prepared using the loose-piece pattern process with all the allowances which is provided during producing a pattern and compared with the precision investment casting process. The investment casting process have the limitation of the size and mass of the casting. On the other hand our proposed method of pattern loose-piece pattern require a low cost and also a less time consuming process as compared to the precision investment casting process. The new conceptual pattern loose piece pattern process does not produce a high grade surface finish product as compared to the precision investment casting process which produces a higher grade surface finish. But because of technological development, high quality grinding and finishing operation machines are available which can provide better surface finish. So the new conceptual method of producing casting can produce high quality surface finish of final product, large and heavy product with less cost and high speed.