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Before you start, you must ensure the arc welding machine is in good working condition and properly grounded using an earth clamp. You of course also need mains supply to your arc welder.
Clean the metal surface on the workpiece to remove any dirt, rust or contaminants using a wire brush or angle grinder. Secure the base material in a suitable position for welding using a welding clamp.
Choose the appropriate consumable electrodes (stick) based on the type of metal you are welding and your arc welder’s recommended settings. Then insert the electrode rod into the electrode holder and secure it tightly.
Set the right current (amperage) on the arc welding machine according to the electrode manufacturer’s recommendations. The current affects the weld’s quality and penetration. If you're using an arc welder with hot start technology, it should increase output current if the arc length becomes too short.
It is an electrical transformer that delivers a high level of electrical current at the output. When the electrode is in close proximity to the part to be welded, it creates a strong electric arc and causes a short circuit. This melts the metal parts and the electrode, joining them together.
The electrode consists of a metal core and a protective layer to prevent oxidation. The core is used as the filler metal for welding, while the protective layer must be removed once the weld has cooled. Electrodes are consumables that are used for specific metals and tasks. The composition and size of the electrodes should be suitable for the metal and work being performed.
MMA arc welders are versatile and can be used to weld a wide range of metals and thicknesses, making them suitable for various applications. They are also typically compact and portable and do not require a shielding gas which makes them ideal for fieldwork and remote locations. They also have a safety feature that stops the current if the electrode gets stuck.