Precision Metal Workshop Co., Limited |
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2. LOST WAX CASTING PROCESS:
1.TOOL MAKING
A wax injection mold is designed and built to produce castings per
customer specifications.
2. WAX PRODUCTION
A wax pattern is produced from the wax injection mold.
3. PATTERN ASSEMBLY
Wax patterns are attached to gating system by hot knife.
4. SHELL MAKING
The pattern assembly is dipped into a ceramic slurry, coated with a
refractory material and dried. The process is repeated until the
desired thickness and strength is achieved.
5. DEWAXING
Using regulated steam pressure, an autoclave melts and remove the
wax from the ceramic shells.
6.SHELL PREHEAT
High temperature ovens cure and preheat the ceramic shells before
pouring.
7. CASTING
Pre-heated Ceramic cavities are poured with the molten metal.
8.KNOCK OUT
The ceramic shell is removed by vibration knocking and the cluster
is cleaned.
9.CUT OFF
Castings are cut off from the gating system.
10.MACHINING,SURFACE FINISH,AND INSPECTION
After cut off and gate removal, all secondary finishing operations
are performed. Each casting is inspected according to customer
specifications and requirements.
Material | ||
Metal | Aluminum | Aluminum 5052 Aluminum 6061-T6 |
Aluminum 6063 Aluminum 7075 | ||
Stainless steel | 1.4301, 1.4410 , 1.4404, | |
718H | ||
Steel | 12L14, 4140, 1018,1045, 4130, 4142, | |
O1, D2 tool steel, A36 1008 , Alloy42 | ||
Brass | 260, C360,H59,H60,H62,H63,H65,H68,H70 | |
Copper | ||
Bronze | C932 | |
Plastic
| Carbon fiber | |
Acetal | (Polyoxymethylene (POM)) [Delrin] | |
PEEK | Polycarbonate | |
Polystyrene | Polyether Ether Ketone | |
Nylon | ||
ABS | ||
PVC | ||
Acrylic |
Finish Result | |
As Machined | Sharp edge and burrs will be removed |
Bead Blast | Smooth, matte appearance |
Anodized | Corrosion-resistant finish. Parts can be anodized in different colors—clear, black, red, blue, yellow and gold etc. |
Powder Coat | This is a process where powdered paint is sprayed onto a part which is then baked in an oven. This creates a strong, wear- and corrosion-resistant layer that is more durable than standard painting methods. A wide variety of colors are available to create the desired aesthetic. |
Customized | |
Others | |
Tolerance | +/-0.005mm |
Lead Time | 1-2 weeks for samples,3-4 weeks for mass production |
Drawing Accepted | Solid Works,Pro/Engineer, AutoCAD(DXF,DWG), PDF |
Payment Terms | TT/Paypal/WestUnion |
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