Welding and Cutting

Based on their different process characteristics, they can be divided into three main categories: fusion welding, pressure welding, and brazing. Fusion welding involves heating the joint between two workpieces to a molten state, and then allowing it to cool and solidify together without applying any pressure, thereby completing the welding process. Pressure welding is a welding process in which pressure must be applied to the welded parts, along with heating (or no heating), to complete the welding. Soldering involves melting a low-melting-point solder so that it can diffuse with the metal of the workpiece (which remains heated but still in solid state), thereby achieving a connection. Welding and cutting have no corresponding relationship

Oxyacetylene welding: A welding method that uses the flame generated by the combustion of a combustible gas mixed with an oxidizing gas as a heat source to melt the workpiece and the welding material, thereby achieving atomic-level bonding between them. Welding: Welding is the common term for shielded metal arc welding. A welding process that uses a welding rod to melt the metal parts at the points where they need to be joined, through the high temperature of an arc. Flame cutting: Flame cutting utilizes the high temperature generated during the combustion of iron oxide to cut carbon steel. The flame cutter is designed to provide sufficient oxygen for the combustion of iron oxide, ensuring good cutting results. Plasma cutting: Plasma arc cutting is a manufacturing method that uses the heat of a high-temperature plasma arc to locally melt (and vaporize) the metal at the cut site of the workpiece, and then utilizes the momentum of the fast-moving plasma to remove the molten metal in order to create a cut. Flame cutting equipment is inexpensive and the only economical method for cutting thick metal sheets, but it has shortcomings when it comes to cutting thin sheets. Compared to plasma, flame cutting results in a much larger heat-affected zone and greater thermal deformation. To achieve accurate and effective cutting, operators need to possess advanced skills in order to avoid the thermal deformation of the metal plate in a timely manner during the cutting process.