One of the most recent developments in investment casting is foam casting. This type of casting removes some steps involved in the entire procedure. On an overall basis the process is used for smaller casts, however it is good enough to see through complicated tasks such as door frames for aircrafts and steel and aluminum castings. Although it involves low costs, it is more costly than sand or die casting systems.
Investment casting grew worldwide during the 1980s to cater to the evolving demands of aircraft engine and airframe parts. It is also utilized in sculpture and jewelery and about one hundred years ago dental inlays and even surgical implants were made using the method.
The method behind investment castings