Investment casting is an industrial process based on and also called lost-wax casting, one of the oldest known metal-forming techniques. From 5,000 years ago, when beeswax formed the pattern, to today's high-technology waxes, refractory materials and specialist alloys, 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, 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.
Advantages of Investment casting
Many Intricate forms with undercuts can be cast. A very smooth surface is obtained with no parting line. Dimensional accuracy is good. Certain unmachinable parts can be cast to preplanned shape. It may be used to replace die-casting where short runs are involved.End User Postion