Cutting 3"x3"x3/16" Angle

[NRM]

I need to cut some 3"x3"x3/16" mild steel angle this weekend and am looking for setting suggestions. I want to cut the angle in half along the 90 degree bend so I can use the pieces as flat stock to cover the ends (like a v tray). I have a PP205 and was thinking 30a and 60 psi....any other suggestions?

[performance]

Why not just cut at 50 amps?

[NRM]

So the max amps would be best. I thought that the cut width (kerf?) is wider the higher the amps and there is more dross(?) at the bottom of the cut. I will have to get the cutting speed right also.

[geezer]

So the max amps would be best. I thought that the cut width (kerf?) is wider the higher the amps and there is more dross(?) at the bottom of the cut. I will have to get the cutting speed right also.

Here is some good reading that will explain about the two kinds of dross, upper and lower, the affect of cut height etc.: http://www.agelkom.com.tr/thc_vs_sensor.htm

[morgaj1]

I have found that I get cleaner cuts by not using the max amperage if I don't have to. I bet you will get the best cuts with 25-30 amps on 3/16" stock.

[everlastsupport]

I have found that I get cleaner cuts by not using the max amperage if I don't have to. I bet you will get the best cuts with 25-30 amps on 3/16" stock.

And good dry air.

[NRM]

The Motor Gaurd M-30 was recomended by Mark and other forum users, so that is what I have. Hopefully it will give me clean dry air. Are there and general plasma cutting guidelines (i.e. amps, psi, travel speed, etc) for different metals and thicknesses? Or is it by machine and operator?

Have a good 4th of July weekend everyone!

[morgaj1]

Are there and general plasma cutting guidelines (i.e. amps, psi, travel speed, etc) for different metals and thicknesses? Or is it by machine and operator?

From the Everlast Power Plasma Manual:

"General guide: for every 1/8 inch increase over 1/8” thickness, increase by 10 amps. For 0-1/8” use 20 amps minimum. For example use. 1/4 inch should be set at 30 amps. 3/8 inch would require 40 amps."