Mechanical Engineering - Workshop Technology - Discussion

Yes, It is investment moulding.

Investment casting as there is no problem of drafting lines and mostly used for complex sections like turbine blades.

It is investment moulding.

Practical Applications of investment casting: Jet propulsion for military and civilian aircrafts gave investment casting the foremost status in the casting industry. From heavy casting of 300Kg to small casting of 30 kg, this casting method is used for as wide for hi-tech industrial applications. This process is more expensive than sand casting in terms of the casting techniques, but the equipment are relatively cheaper. But still, investment casting is largely relied on for complicated designs that cannot be casted using any other method. Investment casting finds widespread application in spacecraft, jet engines, etc. Though this industry is heavily depended on the aircraft industry, it is is find our new field of application to broaden its horizon.

Here not only turbine.

Turbine blades casting by shell moulding.
By book shell moulding used for a small piece and large number.
But only the turbine is by investment casting.

I think it is investment casting.

Investment casting is the right answer.

It should be investment casting.

It is investment casting. I too agree.

It is investment moulding. It is also lighter to able to generate much torque for the turbines.