Mold Production The plaster mold casting process we employ involves pouring a plaster slurry onto a master pattern. Molds are poured one at a time. After they set, they are stripped from the pattern and baked in ovens to evaporate all the remaining moisture and ensure consistent surface appearance and top casting quality. The replication from mold to mold and part to part is highly accurate and can be used effectively for both prototype and production volumes. Metal Casting Virtually any aluminum or zinc alloy can be poured by the Ultracast vacuum casting method. Alloy A-356 achieves high strength and replicates aluminum die castings very closely, while 713 is often chosen for applications requiring high cast strength with stability such as optical housings. Adherence to strict standards in classifying, sorting, handling and de-gassing the metal results in fully traceable melts of exact chemical composition. Our vacuum system allows fine details on the most challenging component geometries such as deep draws, pins, fins and thin walls. Washout and Finishing After sufficient cooling time has been allowed for complete solidification, the casting is broken out from the mold. High-pressure water jets are applied to remove all traces of mold material from the part prior to mechanical clean-up. Mechanical clean-up includes such steps as cutting off the gating, where metal enters the mold, and removing the flashing that occurs naturally at the mold joints or parting lines on the casting. These operations are performed by grinding and careful hand filing. Subsequent grit blasting removes the thin oxide skin found on all aluminum castings and prepares the surface for plating and/or painting by providing a finished, uniform appearance. Continue to Machining, QA and Secondary Services...				Home Our Process:    Engineering    Casting    Machining & QA Technical Data Gallery Request Quote & Transfer Files Map and Directions Contact
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