Resinservices has some very nice epoxies. www.resinservices.com. Their htr-212 with 386 Hardener is a good combo, very clear, high temperature resistant, and is flexible or 'toughened'.
For cheaper epoxies try douglas and sturges, www.artstuf.com. 2001/7132 combo is also clear.
Also: you could...
What is the mechanism of failure? Does the glass break in half, or (more likely) the fiberglass delaminates from the glass? Is there a glue used, or do you stick it on while the fiber or resin is "wet"?
They have different coefficients of expansion, but really, polyester is a poor adhesive if...
Thank you for all the ideas- very helpful in getting an overview of the industry.
Investment/ceramic shell does look like it can produce the detail necessary, especially Hitchiner's process. Time is reduced by gang-molding the parts. How long does it take, does anyone know, to go from wax to...
That makes lots of sense, arunmrao, TVP, and swall.
The only question left then, which isnt precisely metallurgical: what to do when you want a strong, intricate part?
Is the answer: Just run costs on A) redesigning with the stronger Mg or Al alloys and the tooling (die cast) versus B) design...
Thank you for your input. Sounds like mold stresses are the main factor in limiting die casting of steel.
The permanent molds currently used for gravity casting steel, which include refractory metals and some sort of water cooled copper(?), could they be cooled more, to allow a higher...
We are unable to get a satisfactory answer to why steel/iron is not, or cannot be, pressure cast with permanent molds. It can be gravity cast, as I understood, into cooled copper molds. Does the high temperature required make an injection system too short lived, or are there properties of the...
