ahh I didn't relize that the ceramic may bond itself to the aluminum. Let me give you some kind of an idea of what the part I'm trying to cast looks like. Think of this as a Bowl and the mouth of the bowl is flat. So what I was thinking about doing was making a box out of steel or aluminum. I was going to place the mouth on the bowl on the top of the box and then then put the top back on the box.. lightly glaze the piece with release. Then pour ceramic on the inside of the box.. this will make the mold for the outside of the bowl. Then drill and tap holes on the top and run bolts on the inside.. then drill a hole in the middle and pour the ceramic on the inside of the bowl. The bolts will be used to fasten the ceramic to the top of the box.. like ribar does with concrete.
I've attatched 3 pictures. One is my "idea" for a mold box.. and the others are basically what the part looks like. Tell me if you think I'm headed for failure or possibly success.
If need be I "can" make a plaster mold first and then pour wax.. then from there I'll have a wax master. Is there a certain type of wax I can buy that is better to use for master making?
Thank you again for answering my questions. I'd like to work a day in your shoes to see what your company does and the methods behind it. |