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I am looking at options for welding in the field (say in an off-roading setting). I plan to install a second battery on my truck, and with the dual (2x 12V ) setting, thinking of using a MIG spool gun (like those used for Alu MIG) but with flux core wire, so no gas needed. All I need is to somehow regulate the current to say, 125 Amps or whatever, and it should work, right? This would be useful if I need to do off-grid emergency repairs. I have an onboard compressor that can drive air tools, so can cut and clean steel to prep for welding. Any thoughts?HTP Invertig 221H w/ CK20 water-cooled torch Lincoln PowerMig 210MP Hypertherm PowerMax 45XP Optrel Crystal 2.0
Reply:Sounds like an interesting idea. If I was more electrical savvy I might be able to suggest a way to limit and control the voltage and amperage up and down. Voltage regulator ??? Resistors or other regulating components to dial the amperage up or down. Typically amperage is regulated through wire feed speed. Not sure how that is done in the machines though.Last edited by N2 Welding; 6 Days Ago at 01:04 AM.Lincoln, ESAB, Thermal Dynamics, Victor, Miller, Dewalt, Makita, Kalamzoo. Hand tools, power tools, welding and cutting tools.
Reply:I used to carry an electrode holder and some cables so I could wire two batteries in series. That was for ARC (stick) welding - I never thought about a deluxe (FCAW) emergency setup.Any particular reason you want the added complication of wire feed control?I would not be at all surprised if there is an inverter FCAW that runs (briefly) from 12 or 24 volts. Or an ARC welder for that matter.Jack
Reply:Voltage sensing wire feed is all you would need. IIRC I've seen a VS spoolgun for just such a use. I cant remember where now of course.
Reply:"Ready welder"Around 600 bucks.
Reply:Learn to weld with stick, much more reliable for something like that.
Reply:Originally Posted by koenbroI am looking at options for welding in the field (say in an off-roading setting). I plan to install a second battery on my truck, and with the dual (2x 12V ) setting, thinking of using a MIG spool gun (like those used for Alu MIG) but with flux core wire, so no gas needed. All I need is to somehow regulate the current to say, 125 Amps or whatever, and it should work, right? This would be useful if I need to do off-grid emergency repairs. I have an onboard compressor that can drive air tools, so can cut and clean steel to prep for welding. Any thoughts?
Reply:Wire feed welding off of two car batteries appears to be doable. The Go-welder and the Century portable welder both have satisfied users. Maybe an old fluxcore welder could be hacked up to make a portable wire feeder.Drive motor voltage may be an issue. Seems like stick welding with two car batteries could befrustrating because of low open circuit volts.and no current control.Miller a/c-d/c Thunderbolt XLMillermatic 180 Purox O/ASmith Littletorch O/AHobart Champion Elite
Reply:Neat project, keep us posted on your progress and be sure to post up video of it welding!
Reply:I believe this to be correct information but I can't remember the place where I read it. During WWII many Jeeps (and probably other vehicles) had 24 volt electrical systems. There was some sort of field kit available to allow arc welding repairs to be made on the spot. Must have worked fairly well.
Reply:X2 regarding ReadyWelder. Got mine for a reasonable price on Ebay. Has saved my bacon (& wheeling buddies) many times.Millermatic 255Dynasty 280 DXReady Welder IHypertherm 30XP
Reply:Generator? Problem solved. 1st on WeldingWeb to have a scrolling sig! HTP Invertig 400HTP Invertig 221HTP ProPulse 300HTP ProPulse 200 x2HTP ProPulse 220MTSHTP Inverarc 200TLP HTP Microcut 875SC
Reply:There is an old hippie, ran for a while a solar company in the day before grid connection. The battery of choice for off grid storage was always golf cart batteries. These are 6 volt high capacity batteries. This guy now runs around with a small pickup load of these batteries & welding leads. It is my sense that you'd need a lot of big batteries to supply the energy need for welding. I'd think 12 healthy golf cart batteries, six in series, two parallel banks would make a nice weld. You'll need current control to weld well. Wire feed processes need voltage control to work well whether MIG or flux core.An optimist is usually wrong, and when the unexpected happens is unprepared. A pessimist is usually right, when wrong, is delighted, and well prepared.
Reply:Originally Posted by Willie BIt is my sense that you'd need a lot of big batteries to supply the energy need for welding
Reply:Originally Posted by WeldordieI picked an old Century portable mig machine out of the landfill, several years ago. It runs off of two 12 volt batteries, and lays down a very smooth bead. I'm assuming the drive motor is 12 volt, and has speed control. You can, probably, find a cheap speed control on Amazon that you can wire up to control the wire feed on the spool gun after you determine what voltage the drive motor requires. Doubt you need to control voltage.
Reply:Originally Posted by OscarYup, but at that point you, by the time you nickel-and-dime yourself to death with all those parts, might as well build a miniature "off grid" set-up to get yourself 240V/120V AC power from an DC-AC Inverter just for welding. Or a healthy sized generator and call it a day.
Reply:Originally Posted by OscarYup, but at that point you, by the time you nickel-and-dime yourself to death with all those parts, might as well build a miniature "off grid" set-up to get yourself 240V/120V AC power from an DC-AC Inverter just for welding. Or a healthy sized generator and call it a day.
Reply:Originally Posted by OscarGenerator? Problem solved.
Reply:I can't believe nobody knows about premier power welders? My dad had one when we four wheeled alot, they run off of the special alternator not batteries. You can use any process and enough duty for pretty big jobs axle tubes, weld entire spring packs together crank'er up and cut tie rods off. plus the better model has an A/C inverter to make 120v. Plus the hand wound alternators are world famous alone and will be the last one you ever buy. Dads answer to all these problems was to just stop offroading and sold the Bronco.https://premierpowerwelder.com/shop/...timate-system/
Reply:Originally Posted by BMX WelderI can't believe nobody knows about premier power welders? My dad had one when we four wheeled alot, they run off of the special alternator not batteries. You can use any process and enough duty for pretty big jobs axle tubes, weld entire spring packs together crank'er up and cut tie rods off. plus the better model has an A/C inverter to make 120v. Plus the hand wound alternators are world famous alone and will be the last one you ever buy. Dads answer to all these problems was to just stop offroading and sold the Bronco.https://premierpowerwelder.com/shop/...timate-system/
Reply:I had a zena underhood welder. It welded well. I ran mine piggyback off the vehicle alternator. Biggest issues... Initial setup. High welding amp equals high torque equal belt slippage. And it sucks when you have to do maintenance or sale the vehicle. Finally, not much accessory space under the hood of modern vehicles.
Reply:Originally Posted by Jack RyanIn my case:Premier Power Welder, the Ultimate Under Hood Welding SystemComplete systems starting at $1299.95300A Ground Earth Clamp Stick Welder Cable For MMA ARC Welding Inverter Machine$29.00Jack
Reply:Originally Posted by BMX WelderI can't believe nobody knows about premier power welders? My dad had one when we four wheeled alot, they run off of the special alternator not batteries. You can use any process and enough duty for pretty big jobs axle tubes, weld entire spring packs together crank'er up and cut tie rods off. plus the better model has an A/C inverter to make 120v. Plus the hand wound alternators are world famous alone and will be the last one you ever buy. Dads answer to all these problems was to just stop offroading and sold the Bronco.https://premierpowerwelder.com/shop/...timate-system/
Reply:Originally Posted by koenbroLike others pointed out, i am unpersuaded by the value proposition. I want a spool and minimal voltage regulation of spool/wire speed. Maybe can do it under $300?Sent from my iPhone using Tapatalk Pro
Reply:If you do get an inverter, make sure you get 2000W continuous, not peak/surge. Also, you need some BIG wires. 2000W 12V is just shy of 170A. So, like 2/0 cable. https://harborfreight.com/automotive...ter-63429.htmlSent from my SAMSUNG-SM-G891A using TapatalkIn my experience Welding off an inverter, then the standard Alternator will operate at a deficit and minimal weld time. I did see our public works dept. Operate a miller mig welder while installing a handrail. The workers did not know much about the power source. It was a big truck and i vaguely recall 4k watts.
Reply:Originally Posted by tapwelderIn my experience Welding off an inverter, then the standard Alternator will operate at a deficit and minimal weld time. I did see our public works dept. Operate a miller mig welder while installing a handrail. The workers did not know much about the power source. It was a big truck and i vaguely recall 4k watts.
Reply:Dont know what a Modified Sine Wave inverter will do.
Reply:Originally Posted by KpackDont know what a Modified Sine Wave inverter will do. |
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发表于 2021-8-31 15:01:29