casting is less costly than other methods of metal casting work
such as die-casting and machined components.
Near Net-Shape " is a benefit provided by the investment
metal casting process that reduces the amount of metal casting
material waste and labor costs.
popular metal alloys can be poured in the investment process
giving your project the most versatile design possiblities and
highest tolerance controls.
finished product has the best quality and finished appearance
than methods such as welded assemblies or sand castings.
Investment Cast takes pride in being the leader in quality castings.
Quality emphasis is maintained throughout, from order entry through
shipping and extending to customer service follow-up. Quality production
procedures have been developed for each operation, and numerous process
controls are in place. For example, material examination is made before
each pouring; each record can be traced; 100% products are inspected.
We invites you to visit our foundry to see first hand our commitment
to the manufacture of quality castings for your needs. Our company
aims to take the responsibility of providing qualified product and
service for our customers.
Basics of the Investment Casting Process
Wax design of the desired castings are produced by injection molding.
These designs are called patterns.
The patterns are attached to a central wax stick, called a sprue,
to form a casting cluster or assembly.
The shell is built by immersing the assembly in a liquid ceramic slurry
and then into a bed of extremely fine sand. Up to eight layers may
be applied in this manner.
Once the ceramic is dry, the wax is melted out, creating a negative
impression of the assembly within the shell.
In the conventional process, the shell is filled with molten metal
by gravity pouring. As the metal cools, the parts and gates, sprue
and pouring cup become one solid casting.
When the metal has cooled and solidified, the ceramic shell is broken
off by vibration or knock-out machine.
The parts are cut away from the central sprue using a high speed friction
After minor finishing operations, the metal castings becomes identical
to the original wax patterns and are ready for shipment to the customer