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The Investment Casting is an engineering method that
can make the most similar figure of targeted products, and as a
result, the whole production cost can be decreased.
Modern Demands of a Casting Process
Against this
background, attention turned to lost wax casting to produce accurately shaped
blades. In meeting this challenge, four key problems had to be solved:
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Castings had to be reproducible within close
dimensional limits
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Casting had to be produced in high melting point
alloys
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There had to be high standards of metallurgical
quality
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Costs had to be lower than for alternative techniques.
The Process includes the following:
Step 1 : Tooling
Making Die for Wax pattern injection.
Design the
locations of gate & feeder. |
Step 2 : Injection
Injection type ; Automatic, semi-auto, & plastic Injection
M/C.
Setting the injected wax patterns on the
fixtures. |
Step 3 : Set-Up
Assembly the patterns on drum.
The patterns are
attached to the drum for making a set-up cluster.
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Step 4 : Slurry Dip
The assembled mold is coated with a fine grain ceramic
slurry using a specially designed vacuum machine.
To insure
a uniform coating, automatically lowered & rotated into
slurry. |
Step 5 : Stuccoing
Using a fluidized bed, multiple layers of refractory grain
stucco are added for reinforcement.
The molds are dried
under controlled condition.
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Step 6 : Dewaxing
& Firing
Autoclaving extracts the pattern wax.
Recovered
materials are processed for reuse.
The mold is prefired
& cured to exact casting temperature. |
Step 7 : Melting
& Casting
Preheated mold is placed in a special vacuum casting
chamber.
Molten metal is cast into the mold using vacuum
assist.
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Step 8
: Knock-Out
Using the Mechanical vibration process to removal the
refractory.
These techniques depend on the state of
clusters. |
Step 9
: Cutting
After cooling, the parts are cut from the cluster with
cut-off wheel.
Using the mechanical cut M/C, & plasma
cut process. |
Step 10
: Grinding
The castings are grounded smooth for grinding the
gate.
And then, Sand blasting the castings to clean the
surface. |
Step 11
: Straightening
Correcting the bended castings with static Press
M/C.
Using the fixture by each part.
Castings are sent
to inspection after the gauge check.
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Step
12 : Inspection
- Measure Inspection (3-Coodinate
Measuring Machine)
Profile
Projector,
Micrometer,
Vernier
Calipers
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Chemical
experiment : Spectrometer
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- Nondestructive Inspection
X-RAY Inspection Tester
Magnetic Particle
Tester
Hardness Tester(Rockwell,
Brinell)
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ETC. : Universal Measuring
Machine |
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Corporate Office |
Registered Office |
Works |
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4B, Hungerford Street,
Suvira House,
Kolkatta -700017 (INDIA) |
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35-A, Arvind Marg,
Hotel Maurya Palace Annexe
M I Road, Jaipur-302001 (INDIA) |
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Plot No. SPI-4,
Sotanala Industrial Area,
Behror, Distt. Alwar (Rajasthan) INDIA |
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Phone |
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91-33-2287-2287 |
Phone |
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91-141-5101414 |
Phone |
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09214201070 |
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Fax |
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91-33-2289-0307 |
Fax |
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91-141-5104455 |
Mobile |
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09352681326 |
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e-mail |
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info@warrensteels.com |
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e-mail |
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works@warrensteels.com |
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Copyright © 2005
All Rights Reserved - Warren Casting Ltd. |
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