("Sintering," just as a refresher, means welding without melting.) SLS works with a broad range of materials, including rigid thermoplastics, thermoplastic elastomers, polystrene, stainless steel powder, investment casting wax
, and ceramic powder.
ACES build style is used for limited production tooling using investment casting wax
, suitable when customers want a couple hundred parts.
In the first, the ACES build style is used for limited production tooling using investment casting wax
. ACES for Wax fits a niche in which the customer wants 10 to a couple of hundred parts, said Bob Dzugan, metal casting specialist at the Edison Materials Technology Center (EMTEC), a technology-transfer consortium in Dayton, Ohio.
This process allows a number of different powdered materials to be used, including polycarbonate, nylon, and investment casting wax
. The advantage of the SLS system is that polycarbonate and nylon provide enough strength and stability for limited functional and environmental testing.
When casting wax
patterns, we recomand a wax temperature with 8[degrees]C higher than the injection temperature and a mould temperature between 30-35[degrees]C.
Vulcan Engineering showcased its new Tru Glu system for automated investment casting wax
pattern assembly, which uses robotics to build investment casting trees.
With further development, the process should enable rapid and economical generation of core and cavity inserts for direct injection molding of end-use production plastic parts, manufacturing large quantities of investment casting wax
patterns, and dies for direct die casting of production metal components.
The company has found that producing patterns with polycarbonate compounds, rather than traditional investment casting wax
, is ideal for casting metal parts with fine features and thin walls.
Biomet says the 3-D Modeler is attractive because it can make models from investment casting wax
. Typical models are built off the CAD data in less than two hours.