Soluble cores are basically wax patterns, and the cost of the molds can be estimated byusing the preceding equations. Ceramic core molds are similar to plastic injection molds.The ceramic core material is injected under high pressures and temperatures. Ceramiccore material is also extremely abrasive and usually requires steel molds. The cost ofceramic core molds may be estimated using the methods described for plastic injectionmolding in Chapter 8.
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