The document describes the development of a welding machine that uses salt water. It discusses arc welding and how salt water works as an electrolyte solution and variable resistor to control amperage. The welding machine is built by submerging copper wires in a salt water solution and connecting them to a power supply. Adjusting the distance of the wires in the solution controls the amperage for welding. The machine allows for low-cost welding in emergencies and has advantages like working on dirty metals, but safety equipment is required and efficiency is lower than traditional welders.

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DEVELOPMENT OF WELDING MACHINE USING SALT WATER

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DEVELOPMENT OF WELDING MACHINE USING SALT WATER

3. CONTENTS
Arc welding.
Arc welding working.
Salt water welding principle.
Working steps of S.S.W.
Advantages.
Limitations.
Conclusion.
Reference.
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DEVELOPMENT OF WELDING MACHINE USING SALT WATER

4. ARC WELDING
Welding is a joining process of two or more
similar or dissimilar with or without application of
heat, pressure & filler material.
Arc welding is a welding process that is used to
join metal to metal by using electricity to create
enough heat to melt metal, and the melted metals
when cool result in a binding of metals.
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5. ARC WELDING WORKING
It is a type of welding that uses a
welding power supply to create an
electric arc between a metal.
The stick(electrode) and the base
material to melt the metals at the point
of contact arc welders can use either
DC or AC current and consumable or
non consumable electrodes.
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DEVELOPMENT OF WELDING MACHINE USING SALT WATER

6. SALT WATER ARC WELDING
The welding in which Arc produced with the help of salt water called
salt water welding.
Salt water solution act as an electrolyte solution.
The salt water work as a variable resistance or ballast to control the
amperage.
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7. SALT WATER WELDING PRINCIPLE
 Salt water welding based on the principle of electrolyte solution
behaviour of salt water.
 The salt water work as a variable resistance or ballast to control the
amperage.
The salt water cuts voltage at a greater rate than current. The resistance
will be decrease.
 NaCl→Na+ CL-
The electrons moves towards anode at high velocity and ions move
towards cathode.
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8. WORKING STEPS
Step 1: This project uses High Amperage and
High Voltage and its mostly lethal if not handed
carefully, always wear gloves and shoes, don't
operate exposed parts or not securely insulated
components, if you need to change the
positions of the cables inside the water, unplug
it first.
Use all the recommended welding equipment
when working on this project including: Welding
Glasses or Mask, Leather Gloves, Leather
clothes and an insulated surface. Don't forget to
be dry (always dry your hands if you change
anything on the water).So Its done carefully.
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9. STEP 2: MATERIALS
5mm diameter of Copper
10L of water
5kg of Salt
Electrode holder
Earth clamp
6013 or 6011 welding rods or electrode
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10. STEP 3.PREPARATION OF WIRE
CABLES
First we are going to need 3 pieces of wire, Take
the 10m piece and cut it in half,
next take one of these half's and cut in half again.
Now we got 3 pieces of wire:
1st piece=5m 2nd & 3rd pieces are 2.5m each
 Take the 5m piece, scrape about 1.5cm on each
side of the cable, it will be used as the ground
wire.
Take the 2.5m cable and scrape 1.5cm on one
end and 20cm on the other end, these will be our
positive wire. 19-04-2023 10
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11. STEP4: ATTACHEMENT OF HOLDER AND EARTH
CLAMP
Now install the electrode holder
on the 1.5 cm end of the 2.5m
cable
and the earth clamp on one of
the 1.5cm end of 5m cable.
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12. STEP5 :PREPARATION OF SALT WATER
Fill the 20ltr gallon with around 151tr of water,
Keep the 20cm end of the 2.5m cables in the water
and put something on the bottom to hold them
submerged and straight.
Pour around 1 kg of salt on the water.
The salty water will work as a variable resistor,
powering the AMPs up based on Electrolysis.
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13. STEP 6: ELECTRICAL POWER SUPPLY
To turn the power on, Attach the 5m cable on the neutral line of your
wall plug and the 2.5cm cable on the Positive line,
"DON'T PUT THEM AS YOU WISH, YOU MUST KNOW WHICH ONE
IS THE HOT WIRE AND WHICH ONE IS THE GROUND WIRE".
Put the 6013 electrode on the electrodes holder and try striking an arc,
if the amps are too low, put the two cables nearer inside the water,
if the amps are too high, space them from one another.
"DON'T FORGET TO UNPLUG THE WIRES BEFORE ADJUSTING
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14. DEVELOPED WELDING MACHINE VIEWS
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15. ADVANTAGES:
Easily made.
Low cost.
In Emergency, it can made at home easily.
It works on general line voltage like 230/110V.
 Heat generation equal on both cathode and anode
 Work on medium penetration depth.
 Works on dirty metal
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16. LIMITATIONS:
 Safety equipment required.
It may be short circuit.
 As high current it will be more dangerous.
 Lower efficiency.
 High skill level - operators.
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19. CONCLUSION
Finally we can weld through salt water.
Some time at home, we can weld in emergency.
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20. REFERENCE
www.instructables.com/id/water-and-salt-Welsder
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21. THANK YOU
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