Abstract
In the late 1980's and early 1990's, use of CAD/CAM and computer graphics in both ferrous and non-ferrous foundries increased considerably. An interactive computer system has been developed using an Autocad software as a base for this system. Several routines have been used to utilize the geometrical data. surface area and volume of the product drawn by the Autocad techniques. A pattern model was built and splitted at parting surface to show parts of casting in the cope and drag. It can also be viewed from any direction to check the facility of Withdrawing the pattern from the molding sand. The system results in a complete planning sheet that include casting weight, core prints, flask, gating and riser dimensions. The results can be saved for any modification and new results can simultaneously be found. Some case studies were described and presented.
Highlights
In recent years much efforts have been devoted to introduce the CAD systems as a basis technology and teols for many engineering applications, a &w of these effons have been directed to foundry applications [ 1 - 6 ]
Other researchers have concentrated on modeling of fluid flow of liquid metal in casting. [ 7, 8]
More related works for riser calculation has been presented by Ruddle eta! [Ill Ajrnal & Dale [l2] have presented a microcomputer program to estimate the total casting weight by using more than twenty options for basic shapes
Summary
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