‚Investment Casting’ means a casting process which is used for the manufacture of such parts that have to meet high demands as to dimensional accuracy and surface quality.
The procedure allows small amounts of machining allowances. In this way the blank weights are lower and so are the machining costs. In most cases Investment casting pays only if the number of units is large enough, as both tools and production are rather costly. Investment casting is suitable for all metal materials. The procedure is used – among others – for the production of parts of turbochargers, injection systems, exhaust systems and fuel pumps.