Lost Wax CTE?

- D
- dave sanderson
  
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posted
12 years ago

Wed, Aug 11, 2010 2:18 PM

A long shot possible, but does anyone know the CTE for lost wax
casting wax?
cheers
Dave

- C
- Chris Edwards
  
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posted
12 years ago

Wed, Aug 11, 2010 2:25 PM

I don't know what CTE means but it sounds as though you might be looking for Alex Tiranti's. If so, risk life and limb and try

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--
Chris Edwards (in deepest Dorset) "There *must* be an easier way!"

- P
- Peter Fairbrother
  
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posted
12 years ago

Wed, Aug 11, 2010 2:45 PM

1.7 x 10^-4 /K is a typical value, but it varies with the wax of course. Makers of good commercial waxes should have more accurate figures for their waxes available.
-- Peter Fairbrother

- D
- dave sanderson
  
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posted
12 years ago

Wed, Aug 11, 2010 7:47 PM

ay!" =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0
CTE is coefficient of thermal expansion. Its how much bigger a meter of a thing gets for a 1 degree rise in temp (usually, tho inches and stuff are also available ;) Been to Tiranti to buy wax for testing a 'thing' at work, but no detail info there.
Dave

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- dave sanderson
  
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posted
12 years ago

Wed, Aug 11, 2010 7:51 PM

Cheers Peter, that will be accurate enough. Main point is its significantly different from Titanium, and may warrant thermal controls when measuring masters.
Dave

- P
- Peter Fairbrother
  
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posted
12 years ago

Wed, Aug 11, 2010 8:11 PM

Yes, it's quite high - you can get low expansion casting waxes, but these are usually more expensive, if nothing else (ie not sold as such).
-- Peter F