ARC Welding

Resistance welding joins metals by applying pressure and using electrical current. It does not require filler material. In contrast, arc welding creates an electric arc that produces intense heat, melting the metals together. Arc welding often uses filler material to create a strong join between the metals. In contrast, arc welding employs an electric arc … Read more

MMA welding, or Manual Metal Arc welding, is a type of arc welding. It uses a stick electrode that melts away during the process. This creates an electric arc between the electrode and the workpiece. While both methods use an arc, they differ in the types of electrodes used and the way they are applied … Read more

Arc welding uses electricity to create heat and melt metal for welding. Oxy-acetylene welding uses a gas flame for heating and cutting metal. Arc welding is popular for home use because it is efficient. Both techniques have unique advantages and applications, making them suitable for different tasks and materials. In contrast, oxyacetylene welding relies on … Read more

Plasma arc welding is an advanced welding technique. It uses a constricted arc to produce heat for joining materials. The arc is created by a tungsten or alloy tungsten electrode. This arc can occur between the electrode and a water-cooled nozzle (non-transferred arc) or between the electrode and the workpiece (transferred arc). The primary techniques … Read more

Submerged arc welding (SAW) is an arc welding process. It uses an arc between a continuously fed electrode and the workpiece. A layer of powdered flux forms a protective gas shield and slag. This protection keeps the weld pool safe and can add alloying elements, ensuring strong and high-quality welds. The principles behind Submerged Arc … Read more

The current setting for arc welding depends on metal thickness. For Stick Welding (SMAW), use lower amperage (around 120 amps) for thin metals. For thicker metals, increase amperage to above 130 amps. Adjust the voltage and travel speed to match the current settings for the best welding results. Voltage influences the arc length, impacting stability … Read more

Arc welding has several dangers. Health hazards include exposure to metal fumes and ultraviolet (UV) radiation. Safety hazards involve burns, eye damage, electrical shocks, cuts, and injuries like crushed toes and fingers. Knowing these risks is essential for maintaining safety during welding activities. Furthermore, electric shock is a significant risk during arc welding. Contact with … Read more

Current in arc welding is the flow of electrons in the welding circuit, measured in Amps. Higher current increases the arc temperature, which influences the welding process. Maintaining proper current levels is crucial. It enhances welding performance and regulates heat, leading to better results. The relationship between current and voltage is also significant. As current … Read more

To achieve the best results in arc welding, set the electrode angle at 10-15° toward the welding direction. For butt welds, keep the electrode at a 90° angle to the joint. This setup helps fuse metals effectively, improves penetration, and ensures smoother arc termination. Moreover, maintaining a steady hand is crucial. Practicing control over the … Read more

In electric arc welding, voltage influences the arc length, and current controls the heat input. A higher voltage results in a longer arc, while a higher current generates more heat. Recognizing these relationships is essential for achieving effective welding performance and quality. Current settings vary based on the metal thickness and type. For instance, a … Read more