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Spot Welding Machine for lithium ion battery using 12v Battery Failed | DIY | Homemade
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- เผยแพร่เมื่อ 5 ม.ค. 2023
- Hello viewers, this video is about a failed spot welding machine design. From some days i was looking at homemade DIY spot welding machines on TH-cam in which one of the simplest one is using a 12v battery. So i thought i should give it a try and see its performance on 18650 lithium ion batteries. In this process, the user needs a 12v battery, 2 thick wires and probes which are used to spot weld a thin Nickle plate on 18650 battery terminals. So i tried it and explained in this video why it is a failed one.
Spot welding is a type of electric resistance welding used to weld various sheet metal products, through a process in which contacting metal surface points are joined by the heat obtained from resistance to electric current.
The process uses two shaped copper alloy electrodes to concentrate welding current into a small "spot" and to simultaneously clamp the sheets together. Work-pieces are held together under pressure exerted by electrodes. Typically the sheets are in the 0.5 to 3 mm (0.020 to 0.118 in) thickness range. Forcing a large current through the spot will melt the metal and form the weld. The attractive feature of spot welding is that a large amount of energy can be delivered to the spot in a very short time (approximately 10-100 milliseconds). This permits the welding to occur without excessive heating of the remainder of the sheet.
The amount of heat (energy) delivered to the spot is determined by the resistance between the electrodes and the magnitude and duration of the current. The amount of energy is chosen to match the sheet's material properties, its thickness, and type of electrodes. Applying too little energy will not melt the metal or will make a poor weld. Applying too much energy will melt too much metal, eject molten material, and make a hole rather than a weld. Another feature of spot welding is that the energy delivered to the spot can be controlled to produce reliable welds.
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Spot welder
Spot welding
Spot welder machine
Spot welding machine
12v battery
High current
High voltage
High power
18650 battery
lithium ion battery
18650 lithium ion battery
li-ion battery
ماشاءالله ایاز زبردست
😘
Thanks zulfiqar bhai
ماشاءالله ماشاءالله ماشاءالله ماشاءالله ماشاءالله ماشاءالله ماشاءالله ماشاءالله ماشاءالله ماشاءالله
Thanks alot dear 😊
hi , you are using 12v Battery and how much ampere . if i use 12v dc power adapter then how much ampere required. can i use laptop adapter also for it
Hello, i used 12v 9amp battery but this battery is not enough to provide the required current for spot welding.
For good spot welds on lithium ion cell you'll need atleast 100Ah battery.
The spot welding also requires pulsed output (typically 10-100 msec) which was not used in this method.
Also, a laptop adapter cannot be used for this purpose because the adapter cannot provide the required current
ocê pegou o conector?
Where did you take the jack? 👍
Hi! you can easily find it on aliexpress
with direct to battery method weld you need a motor cycle starter relay or any 12v 40-100amps relay to make it work properly
Yes, thats correct
Can you post el.drawing with this relay? Will be us we full
Hello! Sorry, i dont get what this black wire with jack is for, could you tell me?? Can i use this pen with another adjustable welding station (with not connecting that jack anyway)??
Could you say What is that jack for??
The black wire with the jack is for those circuits which have a relay to only close the circuit with the pen sends a trigger. So basically this black wire is simply connected with a small switch inside the pen, when you put pressure on the pen that switch closes and it triggers the relay inside the circuit that now is the time to provide that short burst of current. If you don't connect this then there will be no such protection of accidentally touching the two electrodes of the pen. So yes you can use this pen with your adjustable welding station.
that black wire with the jack is for the switch. do not attach the pen dirrectly to a battery for christ sakes man. do more research.
Hello dear! I have the same pen. But my spot welding machine doesn’t have the port to connect that middle (black wire on the pen). Plz tell me how could i operate that pen with welding mashine wich has only +/- INN and +/- out? 😳
Hello, its not compulsory to connect the black wire which is only for trigger.
You can simply add a delay between two spots (if applicable) or use a simple delay timer circuit with your spot welder.
I am using the same circuit which do not include any such feature of triggering
🤩
Ammmmmazing
Thank you
That pen isn't made to connect straight to a battery... There is no voltage change or current change doing it the way you are... You have to use the pen with a spot welder machine...
Yes you are right.
Actually i saw some videos where people have claimed that they can spot weld using this method. But most probably they have used an old battery with low charge. The purpose of this video is to show that when a battery is fully charged, this method will not work and soon i will be showing 3 more and better methods of spot welding.
Thanks for your feedback
😻
Thank you
Nice video, well done, thank you for sharing it :)
Thank you for your kind feedback
Is your name Todd? Short for ReTodd? I think it is.
😂😂
This is bad reviewer... Who not know how to use spot welder.. how com you used spot welder in 45 degree angle😅😅😅
😂
Uhhhh
Isn't its already in english?
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