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Tool Talk Discussion Forum

Re: welder setting

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welding man

03-26-2013 06:25:39
76.9.224.70



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When I taught welding the first thing I did was put a piece of tape over the numbers on the amperage dial, did the same thing when giving a welding test to a potential employee. If a welder can"t turn a welder on,put a 7018 rod in the holder(any size) weld on any thickness plate and burn 1/2 of an electrode and tell if the machine is on AC -DC Straight or DC reverse, too hot or too cold, he"s not a welder.

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Stick welding

03-26-2013 20:14:59
96.53.210.246



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 Re: welder setting in reply to welding man, 03-26-2013 06:25:39  
Usually 6010 is used as a polarity check but I agree that the numbers on the dial mean nothing. It's common to set your heat on a piece of scrap and I've never seen a shop complain about that as long as the finished weld looked good. That said around 45 amps with 3/32" 6011 is too cold unless you're welding really thin sheet metal. Even then on an AC buzz box, you'd have trouble striking an arc. On 3/16" you should be up in the 75 amp range anyways. The dial is useful for repeat settings once you know the particular machine.

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JOB

03-27-2013 03:17:09
173.84.197.76



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 Re: welder setting in reply to Stick welding, 03-26-2013 20:14:59  
Mr. Stick, It was 36 coupe who pretty much said that 45 amps was way too cold if not impossible for 3/32" 6011. 6011 is harder to light than 6010, if you burn a lot of 6011 you get experience and can light it up with no problem even at low amps for thin stuff.

One of my apprentices gave me the number of 15 amps for every 1/32" of electrode diameter. After thinking about it 20 amps per 1/32" would have been a better number to get you in the ball park. That would have given a starting point of 60 amps for 3/32", then the machine could have been adjusted up or down depending on metal thickness and position.

If you would have done the math 15 amps per 1/32" would have put the machine at 60 amps for 1/8" 6011. That is way cold. 20 amps per 32nd would have given a better starting point of 80 amps. Then adjust up or down. I usually run 1/8", 6011 at 90 amps or so depending on machine.

I once used a gas driven Hobart that I had to turn down to below 80 amps to run a 1/8", 7018 vertical up. The Hobart was a temporary rental. The shop machine was the 350 Miller Scyrowave that did a good job at around 100 amps for the same weld.

Below is a electrode amperage chart off a welding supply web site. I don't agree with all the numbers on the chart especially the higher numbers. But it giver you a range depending on machine. This chart did not copy and paste too well but I am sure you can figure it out.

Electrode Amperage Chart

Electrode Dia. in. Dia. mm Amperage Range
6011 3/32 2.4 40-85
1/8 3.2 70-120
5/32 4.0 80-160
6013
1/16 1.6 20-45
5/64 2.0 45-80
3/32 2.4 70-105
1/8 3.2 100-150
5/32 4.0 145-200
7014
3/32 2.7 75-100
1/8 3.2 100-160
5/32 4.0 135-225
7018, 7018 AC
3/32 2.4 70-120
1/8 3.2 90-160
5/32 4.0 130-210
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Electrode Amperage Chart

That chart did not copy and paste too well.

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