Investment Casting
Investment casting is an industrial process based on and also called lost-wax casting, one of the oldest known metal-forming techniques. The castings allow the production of components with accuracy, repeatability, versatility and integrity in a variety of metals and high-performance alloys.
The process is generally used for small castings, but has been used to produce complete aircraft door frames, steel castings of up to 300 kg (660 lbs) and aluminium castings of up to 30 kg (66 lbs). It is generally more expensive per unit than die casting or sand casting, but has lower equipment costs. It can produce complicated shapes that would be difficult or impossible with die casting, yet like that process, it requires little surface finishing and only minor machining. |
