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Investment Casting Process And Our Facilities
Inova / Inovative houses the following fully equipped, self
- reliant departments for producing Investment castings.
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1. DESIGN
Following consultation with us a drawing
is supplied to us by the customer, defining
the geometry, it's required finish and acceptance
criteria. Depending upon complexity , tooling
is designed with adequate feeding incorporated
wherever possible. |
2. Wax Injection
Was replices pattern of the desired castings
are produced by injecting wax into a metal
Die( Tool). Specifically designed wax injection
presses are used, as precise control of the
wax temperature and the pressure under which
it is injected are crucial. |
3. Wax Assembly
The wax patterns are attached to a central
wax bar, called spru, to form a cluster or
assembly of tree. |
4. Shell manufacture
The tree is dipped (invested) into a ceramic
slurry, trained and coated with a fine ceramic
refractory. The most crucial stage of the
shelling process is the primary coating, where
a very fine grade of textured sand is used.
This in turn results in a casting with excellent
reproduction detail and the designated surface
finish. After drying, this process is repeated
with progressively coarser refractories until
a self supporting shell or mould is formed.
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