I hope someone can answer this question, have a web site or formula to figure this out. Given: 3/32" Carbon wire, 300 amps., DCEP. Question: How many #'s per hour will you be depositing. I have a rough guesstiment but not exact. Thanking you in advance. John Gault
I believe i used to complete a 6", sch. 160 in about 20 min.
So, now you can do the math. using a 70 deg. included angle.
anyway you could determine how many inches of wire per minute, thats your quickest way. 300 amps sounds kinda low we weld 3/32 around 425 to 500 amps any where from 26 to 29 volts, whats the application?
darren
3/32" wire has 519" per # and at 300 amps, I can only find charts that give an estimate, not exact. 8#'s at 300 Amps. JOhn
Another way you can figure it:
The square root of (Heat input/500) will give you the fillet leg size you will get at a particular set of parameters.
Heat input = [V x A x 0.06]/ travel speed in ipm
If we assume you are running at 30 volts and 18"/minute, you will get approximately a 1/4" fillet (a little less actually)
0.030 x 18" x .2836 = 0.153 lbs/minute or 9.2 lbs/hour. (0.2836 is steel lbs per cu in.)
Remember that is at 100% arc time; no operator factor in there.
If you are welding grooves, determine how large a fillet weld cross section would be equal to the groove cross sectional area. For multi-pass grooves, figure how many passes, divide the groove area by that number, and you can figure it from there.
This is extrapolated from J.F Lincoln Foundation data.
This is an overlay or bildup on 4137 Drill Pipe at 40" per min., 6 5/8 Dia. This still does not come close to answering my question. I have been doing this for 16 years now and only have real time answers, no actual #'s to prove the deposition. John
Most deposition rete charts are for a specific stick-out, which you may or may not be running. Do you have a wire feed speed meter? If not, you can get a surface speed meter and place it against the traveling wire. If you can get your inches per minute, you can calculate it per your numbers for inches per lb. If you want to know based on amperage, and wire diameter, it will always be an estimate because of the different variables that are not accounted for.
Thanks Greg. I have used 8 times the wire diameter as a given in SAW. 1/8=1" ESO. Thanks John
I looked on Esab's site under SAW wire, there are charts for deposition given for each particular wire, but for 3/32" the chart starts at 400 amps.
Thanks Dave, I have the charts but had to have some math to accomplish any of the figues. John
Well, you got what you paid for.
By SteveinAZ
Date 02-17-2008 19:40
Edited 02-17-2008 19:43
I looked it up in the Lincoln Book....
DC+, 1" ESO, 300 Amps, 3/32" Wire = 57 in./min - 6.7 lbs/hr.
Steve
Edit addition: 300 amps is as low as they list for 3/32" wire...
400 amps = 82in/9.6#
500 amps = 112in/13.1#
600 amps = 150/17.6#
