[TheForge] chip shapes and materials

[Demon Buddha]

Jerry Frost wrote:
> 
> -------------------------------
> If it ain't forged
> it ain't real.
> Wrought iron is.
> The FrostWorks
> 
> Meadow Lakes, AK.
> 
> http://www.artmetalradio.com/
> 
> From: "Demon Buddha" <osan at netlabs.net>
> 
> 
>>>
>>> That would be my misuse of terminology. How about this, High heat 
>>> resistance and high conductivity? It's what I meant.
>>
>>
>> By "high heat resistance", do you mean high MP?  if so, then you are 
>> right on.
>>
> 
> I don't know what MP represents so maybe maybe not.

melting point


> Time consuming, unless it involves sleeping, lazing in the sun, etc., 
> constitutes PITA especially if there's something faster and easier 
> available.

	Right.

>> I have a better idea than that.  how about a polystyrene core that 
>> sits inside a hollow cavity into which you case refractory cement.  
>> When it sets, it is at a far higher strength than clay so that it is 
>> less likely to fail during burnout and firing.  Refractory cement also 
>> tends to be more conductive than the high temperature clays, a good 
>> thing.
>>
> 
> Kinda sounds like Bruce's idea using polystyrene instead of wood. More 
> workable for sure but we're still working with a two part mold and set 
> time for the slip. Still probably a lot easier than swirling.

	Not quite.  The core is left in the refractory and is burned out.
> 
>> > That'd be really simple with a two part gang mold.
>>
>> It'll work but I think it is a lot of hassle.
>>
> 
> Do you seriously think this would be more hassle than slip forming 
> latice cube halves and "glueing" them together? If so I know a LOT less 
> about slip casting than I thought.

	Put mold halves together, pour slip.  ???

> No, charcoal and breeze burn radiating heat in the blast, they insulate 
> outside the blast in a properly structured fire.

	that's what I said.



> Very true but you don't have to jam steel in and out of the fire. I 
> don't, it screws up the fire, damages the fine work and isn't good for 
> anything. I don't know if it'll work either but think it's worth a try.
> 

	Intuition tells me that getting work in and out of the "fire" will be a 
problem to some degree.  I may be wrong.