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Posted on Jan 02, 2017
SOURCE: have a dayton 85 amp
You didn't indicate what thickness of metal you were welding or what type of weld wire you were using (other than size)
Less expensive welders will have voltage present, with trigger off. Shield gas= positive nozzle, flux core= neg nozzle.
These machines are probably abojut 15% duty cycle. That means you can only weld a few min. As far as tripping breaker on max setting, that is probably not unusual. If you read the label on the welder, I would imagine the max line current is over 20amps. This should be on at least a 20A seperate circuit. If I remember correctly, the FLA amps on this machine is over 20a
Check input voltage and be sure you're not experiencing a voltage drop. A small voltage drop will create a dramatic amperage increase on your supply circuit.
Posted on Aug 18, 2010
See if your local welding supplier has a welding guide available. Some even include them as part of their catalog.
There is no real hard and fast absolte rule when welding with Mig. If you weld outside, and in the country where line voltage can vary, what worked well a day ago may not work well today. Those tables are only a rough guide at best, and while useful to you starting out, after a time when you are used to your welder, you will not need it.
What the weld looks like from the back side can tell you more useful information than you might get from a simple arbitrary table.
The best guide- experience. Start welding up scrap to get used to the welder, and get used to the sound of frying bacon or eggs. Then you can rely on your own judgement instead of feeling a need to refer to a book each time.
What the simple rule of thumb is, pick a heat range you think you need to use, then grab some scrap and lay out a bead adjusting the wire speed until you hear it sound like bacon on the frying pan. Then you adjust your speed to the thickness of the metal to achieve full *********** and ideally the back side looking like the front side. If not enough ***********- go up a heat range, and reset wire speed and try again.
When I was doing industrial welding for a grain handling equipment company I moved all around the shop and ended up on many different machines. None of them operated with the identical settings of the others even though a couple of them were of the same manufacture..
Posted on Jan 01, 2012
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