COMPUTER AIDED PROCESS PLANNING FOR PRISMATIC PARTS

Abstract

In the present work, computer aided process planning system has been developed to prepare process plans for prismatic parts. The main emphasis of the work is given on feature identification. A feature identification system based on syntactic pattern approach has been developed to identify various geometrical features with technological specifications. This system is capable of selecting - Vertical milling machine is selected as machine tool because of its high production rates over horizontal milling machine. - The processes for different geometrical features depending upon the technological requirements of the parameter. - The type of the cutting tool. - The feed, depth of cut and cutting speedfor different tool materials (at present H.S.S and carbide). - The process sequencing is done on basis of technological dependencies. The present system generates process upto 4 features. The generated process plan are evaluated 'on the basis of machining time. The functioning of software has been ascertained by generating the process planning sheets for a component with various tool work material combination. Recommendations for future work have also been made on the basis of present work.