Document Type
Thesis
Date of Award
9-30-1985
Degree Name
Master of Science in Industrial Engineering - (M.S.)
Department
Industrial and Management Engineering
First Advisor
Stan S. Thomas
Abstract
As the computer revolution is nearing its end, CAD/CAM concepts are being widely accepted and evolving rapidly. This thesis begins with a disscussion of the significance and advantages of CAD/CAM and their relationship with automation. Hardware and software components involved are then introduced. Product design under CAD is done by computers. Computers perform engineering analysis, necessary calculations, and dynamic simulation to complete the complex design. The geometric elements and operational primitives are provided by a data base system. The major components of CAM are then introduced. The term CAM is used in a broader sense to include CAPP, MRP, NC, Robots and CAQC. Within CAPP, Group Technology serves as the foundation. An example generative CAPP system, XPS-1, is then used to show how a decision model is employed to generate a process plan. After introducing the elements of computerized MRP, a comparison is made between the MRP system, the order point system and the Toyota management system.
After years of independent development, it has become apparent that an interface between CAD and CAM is both valuable and indispensable. A survey of various CAD/CAM standard interfaces are then given. These include GKS, PHIGS, VDI, VDM, NAPLPS, and IEGS.
It is well known that the manufacturing environment today has to meet the requirements of both product complexity and shortened product life cycles. From this study it is apparent that CAD/CAM provides a key partial solution to these problems.
Recommended Citation
Liu, Chao-Ming, "Basic concepts in CAD & CAM" (1985). Theses. 3449.
https://digitalcommons.njit.edu/theses/3449
