What is the Most Effective Casting Method? |
| Critical Requirements for the Ice Cleat The ice cleat has the following performance and production
characteristics which have an impact on the mold type--
- Tolerances are +/- 0.06" with moderate surface
finish
- Fast first item delivery with low rate, long term production
- Component design has moderate complexity.
- Choice of molding method can be a major factor in production cost
|
Casting
Mold Options: The casting can be produced by
3 different types of molds: |
 |
 |
 |
| Green Sand Mold -- Made by packing loose sand around a
pattern and removing the pattern to form a hollow mold. |
Investment Mold -- Made
by making a wax pattern in a metal tool and then coating
the disposable wax pattern with refractory coating and melting out the wax. |
Shell Mold -- Made by heating a resin-sand mixture in metal
tools, forming top and bottom shells which are joined to form
a mold. |
Given the following characteristics of the 3 molding methods,
choose the mold type
that is most appropriate for producing the ice
cleat. |
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