The earliest casting method is investment casting, which dates back to roughly 3500 BC. Precision casting and near net
form are two applications. Product demand is increasing in India and around the world. The use of simulation and rapid
prototyping techniques in the investment casting process improves quality while reducing lead time and cost. However, as
complexity increases, the traditional sand casting technique has limits, one of which is the expensive expense of equipment to
make moulds and cores.
