"Ed Huntress" wrote:

Waterjet seems to have a lot of tricky, unanticipated issues. The early ones
were hellishly loud, and you had to wear hearing protection when you were in
the same room. Is that still true?

On what we cut, low density fiberglass headliner shells it wasn't too bad. Positioning
the nozzle as close to the cut helped keep noise down.

Now on a prototype corvette seat back we were developing for Lear out of many layers of
woven glass impregnated via the SRIM process, we upped the orifice to about 0.010" and
that was damn loud. Non abrasive WJ wasn't the tool for this, too slow. Anyway, Lear
took that back in house and we ended up wasting too much time and resources on that one.

Wes