Modern electric arc welding is easy to use and does not require expensive equipment. Welding skills will come in handy both in construction and in repairs related to metal structures. The main advantage of this method is the ability to correct the mistakes made at any time, cut the product and weld it again.
We will need: a welding machine, electrodes, protective gloves (gaiters), protective clothing, a welding mask with a "chameleon" light filter.
The choice of welding machine and electrodes
There are several types of welding machines, but for lovers only two are relevant: a transformer and an inverter. We recommend choosing an inverter with a capacity of 150 to 200 A. As the electrodes, "universal" 2-4 mm are suitable. There are also specialized electrodes, but they are of interest only to professionals.
How to cook properly - instructions
Before proceeding, it is advisable to strip the edges of the product from rust and paint, this is a feature of arc welding. If possible, fix parts of the product.
How to install the electrode and set the current?
Electrodes must be dry, free from defects. Select the current strength depending on the thickness of the electrodes. Recommendations should be on the packaging with them and on the welding machine itself. It is not difficult to calculate the range of minimum and maximum values, you need to multiply the diameter of the welding electrode by 30 and 40 (for example, the optimal current for an electrode with a diameter of 3 mm will be the working range of 90-120 A).
How to ignite an electric arc?
Turn on the device. As shown in the video, you need to stick the electrode on the metal until an arc appears. In order not to lose it and not burn out the metal, the welding electrode must be kept at a distance of 3-4 mm from the surface. It will burn as it works and drain into the weld, you need to monitor this process and maintain the distance.
How to cook a seam?
You need to start welding from the edge of the product. There are more than a dozen techniques for guiding the electrode along the seam. The simplest is a small circular motion, as shown in the video. Note! It is necessary to melt the part to the full depth, on both edges. Only one edge should not be allowed to melt.
The electrode stuck to the metal. What to do?
Most importantly, do not try to tear it off by force! You just need to move the electrode from side to side, as the master shows - it will easily stick out. As you can see, electric welding is easy. Good luck in your work.
