Section
Casting
Metal casting — patterns, mould and gating systems, solidification, centrifugal casting and casting defects.
6 topics
01
Introduction to Casting
Casting fundamentals, expendable vs permanent moulds, sand casting and pattern allowances.
02
Patterns
Pattern types, materials, allowances and colour codes used to indicate machining and core prints.
03
Mould & Gating System
Sprue, runner, gate and riser design — gating ratios, choke area and pouring basin.
04
Pouring & Solidification
Bernoulli & continuity in pouring, Chvorinov's rule, directional solidification and shrinkage.
05
Centrifugal Casting
True centrifugal, semi-centrifugal and centrifuging — spinning speed and G-factor.
06
Casting Defects
Porosity, shrinkage, hot tears, misruns, cold shuts — causes and remedies.