Lost Wax Casting offers greater dimensional accuracy and finer casting surface than traditional casting. Integrated complex-shaped parts can be mass produced. Applicable materials are much more diverse than die casting, such as low and high melting metals including titanium, aluminum, copper alloy, etc. CASTEM's lost wax casting has improved in our own way, developing the basic technology established in the U.S. High precision screws and gears that used to been made only by cutting process before, can be manufactured by lost wax casting. We offer unbeatable quality.
3D Model butterfly made by lost wax casting : Lost wax is superior in making complex, thin wall shapes.
1. Die/mold Making
Make a die/mold to inject wax into.
2. WAX Forming
Inject molten wax into a mold, then assemble formed wax patterns on a wax tree.
3. Ceramic Coating
Dip the wax tree in ceramic slurry and coat it with ceramic powder. Repeat this to make a solid shell.
Melt out the wax from the ceramic shell to make cavity, then pour molten metal in it.
Break shell and cut each part off a tree, then carry out fabrication (hole processing and cutting) & finishing (dimensional checks and adjustments.)
"Lost wax casting" is a manufacturing method named after its process, fire a wax pattern coated with ceramic shell to melt out the wax, then pour molten metal inside the ceramic shell. Complex shaped parts can be manufactured with diverse materials.
Click to watch lost wax process
Lost wax casting is suitable for manufacturing thin wall parts, three dimensional parts.
Security parts that require high strength.
By integrating several parts into a single part, production cost can be saved by reducing the number of parts and processes.
It also features beautiful casting surface with fine metallic structure.
Parts with complicated shapes, three dimensional curves can be manufactured in large quantities at low cost.
Choice from a wide range of materials, including special steel, stainless steel, copper alloy, aluminum alloy, etc.In trial process, several materials can be compared easily, because one same mold can be used for different materials.
Neighboring or attached parts can be integrated into a single part. Weaknesses caused by assembly or welding can be eliminated.As for moving parts, unnecessary inertia force can be eliminated, and the durability can be increased by weight reduction. So the strength can be pursued from shape and material point of view.
Approximately 12S for small parts, 20S for large parts (slightly different depends on the material)
Dimensional accuracy is excellent, compared with other investment casting, result in less total number of required processes.
Multiple cutting and assembly processes.
Lost wax casting
70% Cost reduction by switching to lost wax casting, eliminating multiple cutting and assembly processes.
Multiple cutting/machining processes.
Lost wax casting
50% Cost reduction by switching to lost wax casting, eliminating multiple cutting/machining processes and the waste of material.
Die/mold production cost is quite low(about 75% lower than die/mold for plastic parts). Die/mold is semi-permanent once it is made. It is easy to change design or change materials, using one same die/mold.
You can choose from a wide variety of materials, such as special steel, stainless, copper alloy, alminum alloy, etc. It is easy to compare materials in the trial process, because one same mold can be used for different materials.
<Trial Process, Small Lot Production>
Because of the low die/mold cost, cost per piece is definitely lower than other manufacturing processes.
By selecting the most suitable casting way, we can offer a competitive price.
By integrating parts and casting them as a single piece, production cost is expected to be reduced significantly.
Simple sheet metal shaped parts
Pipe shaped parts
Thin three dimensional parts
Cam gears, sprokets