The Mystery of Sand Casting: Steps for Solid & Hollow Objects

[scott_for_the_game]

Wow, this forum seems to be full of engineering brilliance :P.

Anyway can anyone help me with this.

The stages in sand casting to produce:

a) solid object that is thinner at the centre than at the ends

b) hollow object with two openings of diameters less than the component diameter.

Just bit confused in terms of 'stages'.

Cheers for any feedback.

 

[FredGarvin]

Your problem statement is a bit unclear, but the way I read it, it sounds like they want to know what steps are used to produce the parts using sand casting. The different geometries require slightly different tweaks to the process to ensure a proper part.