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Hobart porta stick .is it possible to do steel and aluminum with this machine.dc only ?

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Not really.
You can purchase aluminum stick electrodes, but they generally don't work that well.
You will find it best just for steel.

Posted on May 09, 2017

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Posted on Jan 02, 2017

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Not sure what machine you have, but it should be DC straight (electrode negative or DCEN) and DC reverse (electrode positive or DCEP). The polarities have different characteristics. For example, if you're planning to TIG weld, you would either use DCEN or AC (if welding aluminum). For the general stick welding process, DCEP tends to give you a deeper weld. The welding rod you buy will have recommended machine polarity and amperage range settings, you should use the recommended polarity for whichever rod you're using because different rods are designed to weld under different circumstances. But, generally speaking, most welding rods for steel will work on DCEP without much trouble.

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DC current, electrode negative (DC Straight, DC-), High frequency for start only (really don't have to use high freq at all for steel but it helps establish the arc without scratching), 1 amp per thousandth of material thickness is a good setting to start, adjust from there for the job. 1 amp/thousandth also applies to aluminum- it has a lower melting point than steel but conducts heat much better so power to weld is very nearly the same.

Use a sharp tungsten, don't ball it at all (as you would for AC work).

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1 Answer

How do I access gears in a200 hobart. I don't see any screws to detach top. top looks painted shut.


There are two screws holding an access cover on the top front half of the mixer. These screws are normally plainly visible - has it been repainted heavily enough to hide the screws?

If you can't see the screws, all I can say is they are there, under the paint. Maybe shine a flashlight accross the top front half at an angle and look for a hint of a slotted screw head in the paint.
I'm not sure what the access cover is made of nor am I certain if the screws are stainless steel, but if the cover is aluminum and the screws aren't stainless steel, then a magnet should be able to locate the screws for you.
The screws a usually a domed-flathead screw, so some very close inspection of the paint surface may show a slight "bump" where the srews are.

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The F 1 circuit breaker, manual reset is tripping not allowing it to weld. Could it be something as simple as the reset itself


Rated Output at 20% Duty Cycle 150 A at 16 VAC
150 A at 16 VDC Welding Amperage Ranges AC/DC 10 - 165A Max. Open-Circuit Voltage 80 V Amps Input at Rated Output AC-230V: 21A
DC-230V: 23A You need to configure the machine to specifications of the material you going to weld.That is :
-The material of the job
-And the proper amperage to use for the material.
-For aluminum you will use A/C
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Aluminum MIG Welding
1. The best feeding of wire for aluminum is done with a spool gun. If you can't use a spool gun, use the shortest gun possible and keep the gun as straight as possible. Use Argon only for shielding gas. Only use a push gun technique when welding aluminum. 2. If you are having feeding problems, one thing you can try is a contact tip that is one size bigger than your wire. 3. The most common wire type is ER4043 for all-purpose work. ER5356 is a stiffer wire (easier to feed), and is used when more rigid, higher-strength weld properties are needed. 4. Clean the aluminum before welding, to remove the oxide layer. Use a stainless steel wire brush used only for cleaning aluminum. 5. Fill the crater at the end of the weld to avoid a crack. One way to do this is to dwell in the weld pool for a second at the end of the weld.
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1 Answer

Welding aluminum and wire keepscoming out of rollers


your hobart machine it's not suit up for standard aluminum welding, the lenght of the gun it's too long therefore the wire will nest at the drive rolls. You need to buy a spool gun. Or change gun liner for a teflon one (instead of metal one), then change the drive roll for knurled ones and finally oversize your tip if you can. No need to do ALL this if you buy a spool gun.

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steel pan and it magnet is in the inside of pan

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I dont know what kind of metals this wire type can do, it says fire power 1440 u235 flux wire, but not sure what kinds of aluminums or steels it can weld. Im a certifed MIG aluminum welder, but this is a...


Usually a flux core only welds steel. It is a higher penetration weld than a MIG. Usually it acts similar to 6011 rods in SMA (Shielded Metal Arc) welding -- a.k.a. stick welding -- if you're familiar with that. I don't believe there is such a thing as flux wire for aluminum. There may be stainless wire for it, but I've never seen it. It probably could also be used for building up cast iron and cast steel, but nothing structural. I have a Chicago Electric one and I love it -- simple and it penetrates hard. My 90 amp will weld to 3/8" without breaking a sweat and if I baby it will go to 1/2" or better. It is difficult to go much lower than 12 or 14 gauge though due to the high penetration.

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