Dual Input Capp System for Rotational Components

Authors:

B.S. Pabla (Mandigarh College of Engineering & Technology, Chandigarh)

Abstract:

In compuer integrated manufacturing system (CIMS) the ultimate aim is to be able to manufacture the component on CNC facility by directly using the CAD model without any human interference through seamless integration of CAD and CAM. Computer aided process planning (CAPP) integrates CAD/CAM by developing a relationship between the design features and manufacturing features from a computer compatible geometric model of the component. Methodology used for development of CAPP system depends on the approach used to generate the geometric model of the component. Feature recognition and extraction system (FRES) and feature based modeling system (FBMS) have extensively used for component modeling for CAPP. In FRES a commercially available CAD package is used to develop the geometric model of the component in terms of low level design entities like point, line, arc, etc. and a dedicated software then translates the CAD model into manufacturing featurees. In FBMS the geometric model of the component is generated using high-level product features obviating the need for feature recognition for down stream manufacturing applications. A dual input CAPP system has been designed and developed which works on both FRES as well as FBMS approaches. Methodology used to develop the system is discussed in this paper.