Metal investment casting is produced from wax patterns, which are reclaimed, cleaned, and reused time and time again. The wax pattern is used to pre-qualify the metal casting for the part, which reduces metal scrap. More importantly, the metal investment casting process produces parts to net- or near-net shape, which significantly reduces, or eliminates, secondary machining waste. Any metal casting scrap can also be re-melted, tested, and poured again. Metal casting is a very green and eco-friendly process.

Unlike many other casting production methods, metal investment castings do not require any draft. The design engineer is free to incorporate such features as under-cuts, logos, numbers, and letters into the metal casting component. In addition, through holes, slots, blind holes, external and internal splines, gears, and thread profiles can be cast to reduce secondary machining time and total part cost.  Give us a call and we would be happy to consult with you on your project and provide design assistance for the metal investment cast manufacturing process.

Mingda is capable of holding +/- 0.003″ in some cases, however, +/- 0.005″ is a more realistic standard metal investment casting tolerance expectation. As in many modern methods, the price of the part will increase as the tolerances of the part become tighter and the inspection requirements become more rigid. Tighter tolerances beyond typical investment cast standards are achieved by post-cast processes such as straightening (hot or cold), coining, broaching, and machining.

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