After wax pattern is made from mould and modified finely (learn more about it, or click http://www.okamins.com/waxturbinehousing001), the next process for stainless steel turbine housing casing is ceramic shell building and drying. The wax pattern will be dipped into ceramic bath, and then fine sand will be applied to the wet suface, which will be repeated a lot of times until a layed shell is formed. When it is done, the shell will be put into drying process.

Ceramic shell building and drying photo is like this (V-band input output GT is shown):

Bigger AR stainless steel turbine housing IS38

Wax pattern of turbo turbine housing for stainless steel investment casting

IS38 06K145722H turbocharger stainless steel turbine housing

Crack or shake out ceramic shell of stainless steel investment casting of turbine housing

Machining v-band stainless steel turbine housing's install flange