Posted by Gordon England (62.252.0.12) on 21:49:22 02/06/06
In Reply to: Re: key process variables for APS posted by becky
Hi Becky
I would first choose voltage readings. On most modern constant
current power supplies, voltage is dictated by the resistance of
the plasma gases and nozzle/electrode geometry. Voltage is not
normally a set parameter (assuming plasma gas flows are the
primary setting). Voltage readings straying from normal range
will indicate problems (nozzle/electrode wear, water/gas leaks,
plasma gas flow problems).
Next would be powder feed rate and then gas flow rates
(including carrier gas).
Best regards Gordon
Please go to the new
Surface Engineering Forum as this old message
board is a read only archive. Please copy and paste relevant
information or link to this page if you wish to reactivate this
thread on the new forum. 