Re: plasma vs laser vs browns gas for cnc router cutting

--- In CAD_CAM_EDM_DRO@yahoogroups.com, Robin Szemeti <list@r...>
wrote:

> On Monday 12 January 2004 00:51, Doug Fortune wrote:
> > Does anyone have any experience with 'Browns Gas' cutting

(dissociated

> > H2 and 02 atomic mix, or something like that, I'm not sure),
> > sometimes known as 'water torch'?  (its NOT abrasive water jet

cutting).

>
> Its just an eloctorliser of water into H2 and 0, the resulting

hydrogen and

> Oxygen are fed to what is in effect a oxy-fule cutting torch ...

the H2+O

> recombination provides the pre-heat.
>
> I'm not entirely sure why it should be any 'cooler' than a normal

oxy-fuel

> process when cutting thick metal. Its just metal burning in

Oxygen ... as it

> always is ...

The flame is purported to be in the 6,000 degree range so it would
seem to be considderably higher than acetelene(sp?) and since it also
is reported to work on aluminum, the cutting is not just the metal
buring like in steel torch cutting.

The old Harbor Freight product, which I think may be discontinued,
listed the tip as only 1mm wide. That would put the 6,000 degess in
a 1 mm point. The the huge volume of gas, but actually a small
volume.

Also the stored gas was completely save (water) and it was stored in
the handle of the torch.

I remember quite a few links on this when this topic came up last
year.

I am still far from a plasma table, but since I am only cutting thing
aluminum, it seemd like a possible alternative to a plasma cutter.

Dave