[meteorite-list] Re: diamond wire ( was CBN blades)

[AL Mitterling]

Hi Marcin, Michel and all,

I have experimented using this type of wire saw. I used Gibeon and 
Odessa. The problem with it is meteorites are not homogenous and there 
is variation in the resistance of the meteorite causing the wire to 
break/melt when the values change. If a way to monitor the changes in 
the meteorite were possible, then it might cut really good and doesn't 
loose much material.

My experience was it kept breaking requiring an expensive operator to 
monitor the cut the whole time rather than setting it and walking away 
and the expense of the operator didn't warrant using that cutting 
method. It also leaves an very thin burnt layer that would have to be 
sanded down but it in no way would be as bad as having to sand or grind 
down on a specimen that had real bad kerfing in it from a wondering saw 
blade.

My best to all in 2005!

--AL Mitterling

Meteoryt.net wrote:

> Hey
>Its usualy used in factories to cut machine elements from all kinds of iron.
>Its controled by computer, so its have great precise. It use wire make from 
 >eeeeee Molibden if I remember correct. This wire not cut. It only conduct
 >electric power that cut iron. So here is no any pressure on specimen. 
It can
 >be placed only on little magnet or can be hold on table by screw. Wire 
is all
 >the time cooled by special mix water + oil becouse otherwise wire will be
 >burned. In some ways its similar to laser cutting.