Arc Welding Machine

Manual metal arc (MMA) welding is the most basic and one of the most widely used fusion welding processes. It involves striking an arc between a covered metal electrode and a workpiece with a powerful electric current, then melting both the electrode and the workpiece with the heat generated by the arc, forming a weld pool that cools to form a weld seam. During the process, the metallic core of the electrode is utilized to transfer the electric current and the filler metal, which flows into the weld pool, and the flux covering part of the electrode melts and generates a shielding gas to protect the weld from atmospheric contamination.

Our MMA welding machine is suitable for welding workpieces made of varieties of materials, such as carbon steel, regular low alloy steel or stainless steel.

Plate material: 4mm carbon steel plate
welding method: fillet weld in the flat position
electrode: J507, φ3.2mm

Plate material: 8mm carbon steel plate
welding method: fillet weld in the flat position
electrode: J507, φ4mm

Working Principle

Features of Manual Metal Arc Welding