°@
°@
°@
A great way to reduce your costs and increase your productivity
The Investment Casting (lost wax) Process
°@
°@ 1. Die Design---
Consider gate, injection, wax shrinkage°Ktechnical condition to design a die.
°@
°@ 2. Tool Building---
Build an aluminum alloy die by machining.
°@
°@ 3. Wax Injection---
Wax is injected into a die to produce a pattern.
°@
°@ 4. Pattern Assembly---
Pattern are glued to wax runner bars, this assembly is referred to as a tree.
°@
°@ 5. Dipping---
Dip the tree into a slurry to build up a ceramic shell.
°@
°@ 6. Shell Building---
After several coats of slurry and sand, a ceramic shell is built on the wax tree.
°@
°@ 7. Dewax Operation---
Wax is removed from the mold in a steam autoclave.
°@
°@ 8. Preheat---
Fire the ceramic molds.
°@
°@ 9. Casting---
Pour molten metal into the preheated ceramic molds.
°@
°@ 10. Breakout---
When metal has cooled, ceramic shell is broken off by vibration or water blasting.
°@
°@ 11. Cut off / Finish---
Cut the parts away from the tree, gate removal, sand blasting, machining if needed.
°@
°@ 12. Final Inspection and Ship---
Visual inspection to each part, mechanical property testing, spectrographic analysis if needed.
°@
The Benefits of Investment Casting
Lower Tooling Costs--- Averaged tooling costs are often less than other manufacturing tooling costs.
Design Flexibility--- Most shapes can be cast, allowing greater design freedom for very simple to highly complex parts.
Cost Reduction--- Essentially cast to size, thus decrease labor & machining costs, and save on material waste.
Various Choice of Alloy--- Can utilize a wide variety of alloys.
Close Dimensional Tolerances--- Produce close tolerances of °”.005 per inch over other processes.
Superior Surface Finish--- A surface finish can reach about 125 RMS.
Volumes and Size Flexibility--- Production runs can be small or large.
°@
°@
°@