Emergency Welding With Two Car Batteries
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- Опубліковано 11 чер 2024
- Stick welding stainless steel is possible with good results. In this video I show you that it can also be done (with ok results) with nothing but two car batteries and some jumper cables. 🔔 Subscribe for more helpful videos on Random Subjects (It's FREE!) ➜ bit.ly/HelpfulVideosFromChris
SMAW is inherently dangerous en.wikipedia.org/wiki/Shielde... and welding with car batteries has a few extra risks, so for the sake of covering my behind:
DON'T TRY THIS AT HOME!
Some questions and answers:
Is this dangerous?
It could be. Some of the potential dangers:
• Battery explosion with resultant battery acid spray (this is unlikely with healthy batteries)
• Eye & skin damage from UV light
• Eye & skin damage from battery acid
• Electrocution
• Burns
• Toxic gas inhalation
• Fire
Will this ruin the batteries?
Like any large load on a battery, it isn't 'good' for them, but as far as the battery chemistry is concerned it makes no odds if you are doing this, running a large inverter, or even powering a starter motor - the discharge rates are similar. I messed around welding on and off for about an hour, and the resting voltages of the two batteries went from 12.8 volts before to 12.4 volts afterwards - nothing crazy there.
Was the electrode glowing red hot?
Yes.
Is there a way of controlling amperage?
Yes, you could use a section of coat hanger wire - by increasing and decreasing the length of the coat hanger wire in the circuit, you could adjust the resistance and therefore the current flow. (Caution, the coat hanger wire would get very hot!)
What electrodes were you using?
I was using 1.6 mm 316L electrodes.
What size was the stainless steel tube you were welding?
42.4 mm diameter, 1.5 mm wall thickness (316 Stainless Steel)
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Cheers!
Chris 👍
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#welding #emergencywelding #diy - Навчання та стиль
I have an offgrid need to weld 1/4 rebar. I am wondering if 480w @ 24v buck converter "safely" attached to my running van is enough? My van running alternator (160amps) WHILE RUNNING feeds my oversized starter battery 12v 155AH deep cycle. FYI: I am current able to power 1500watt using a 2000 watt inverter with no issues to cook and power anything under 12amps. If so and reasonable, What rod would you recommend? Any way to isolate to protect my battery, alternator and van since effectively shorting my battery.
where did that sound effect at the start of the video come from? heard it before but can't place it.
You used a pure DC power supply which makes putting an inductor coil in the circuit pointless. It's something I've only recently wrapped my head around properly applying myself when I was slogging through a fair bit of trial/error-ing in my first try at making a multi-core microwave oven transformer welder which was an *eventual* success. I wanted the smooth & easily maintained arc that DC offered & since my DC was a rectified AC source, an inductor served a very useful purpose since my DC supply still acted like AC by having the voltage bouncing around at 60hz,(just not with the polarity changes). Having a good inductor was doubly helpful there to have since it both resists changes in current fluctuations (whereas a battery's current fluctuations are entirely load-dependant), making for a steady arc as well as providing it's "voltage kick/spike" if I flinched my arc away from the workpeice, giving me several inches of long-arc leeway & extra fun burning holes in crap (not to mention being a decent high power current limiter)
That is so cool!😊
Haven't seen anyone weld with one battery an car running.prob no much volts .got ya thinking now get tinkering..
Welding stainless is a pain unless you have stainless rods. At least your current is around the right way (grounding the positive)
How much amp?
Car batteries are constant-voltage so amps would be determined by the resistance of the circuit & constantly vary due to the small momentary changes in arc length (which effects circuit resistance)
Yes, but the current will be limited to what the batteries are capable of considering the internal resistance.
Need a electrode ∅ 1.6mm
Hey every el cheapo. My friend welds abit an I usually look at some point aww. So you can use your fone to watch welding,block the sides..screens can't produce the brightness .lol..phone helmets for the helmets Mann.
I dont think any of those are going to stay together at all there absolutely zero penetration. so whats the point of this except to waste time and risk having an acid battery blow up on ya
At the begining of the video hi says i s for emergency pourposes
1 16th inch might be better
Let it cool
🆒
You stand a very high chance of getting covered in battery acid. These battery will I've you no warning when they explode. This is extremely dangerous and should not be attempted.
Thank you for repeating my own warnings back at me Martin. (The potential dangers are covered in the video description, which viewers are warned to read at the start of the video.) I disagree with your risk assessment. There isn't a "very high chance of getting covered in battery acid". As far as the batteries are concerned, there is no difference in doing this compared to any other large load such as powering a starter motor or an inverter. The amperage drawn whilst welding like this is not as high as you might think. I messed around for circa 1 hour and resting voltages on the two batteries only dropped from 12.8 to 12.4 volts. If you are using healthy batteries, like I was, then the risk of an explosion is extremely low. My warnings still stand because I don't want to be responsible for other people's actions, but the reality is that this is not as risky as you might think (or as I made out in the video to cover my posterior). Cheers, Chris