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The business has grown from a small manufacturer of investment castings for a wide variety of applications to a global market leader producing investment castings, forgings and fastenersFor those of us who have no idea what an "investment casting" is:
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Investment casting is an industrial process based on lost-wax casting, one of the oldest known metal-forming techniques"and
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Investment casting is so named because the process invests (surrounds) the pattern with refractory material to make a mould, and a molten substance is cast into the mold. Materials that can be cast include stainless steel alloys, brass, aluminium, carbon steel and glass. The cavity inside the refractory mould is a slightly oversized but otherwise exact duplicate of the desired part. Due to the hardness of refractory materials used, investment casting can produce products with exceptional surface qualities, which can reduce the need for secondary machine processes."https://en.wikipedia.org/wiki/Investment_casting-- sutton
another 15 min Google search reduced by Wikipedia to a few seconds
trying not to remember that this research in my school days would have taken a trip to the library, a search though several drawers of a very large wooden card catalog, locating and pulling multiple volumes off of the shelf, going to those books' indexes and finally locating the 10-30 year old answer on page 847 of the third volume I pulled. Maybe an hour, plus commute time.
