A CAD based Computer-Aided Tolerancing Model for Machining Processes
نویسنده
چکیده
The Computer Aided Design (CAD) has been a very important tool for the design and manufacturing in recent years. However, the CAD has often been used as ‘Computer Aided Drafting’ for engineering parts in industry. The ‘design’ part of the CAD is often not very well implemented and by improving on it we can enhance the usefulness of the computer-based component of the manufacturing process. A typical example is the tolerance specification in the design process of engineering parts, in which the parts are ‘drafted’ with nominal dimensions and then specified with tolerances based on experiences or manual calculation. This process can be improved using Computer Aided Tolerancing techniques and its integration of CAD system. A CAD based Computer Aided Tolerancing (CAT) model, integrating methods such as solid models, transformations and Monte Carlo simulations will be proposed in this study. A computer simulation case study for the machining processes will be used to demonstrate the model.
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