Working Principle and Technical Characteristics of Resistance Welding
Resistance welding is a method that uses current passing through the contact surface of metal parts to generate resistance heat for welding. When the current flows through the contact position of the two parts to be welded, the contact resistance generates high temperature in an instant, causing local melting of the metal, and under the pressure effect, it cools and solidifies to form a strong joint. This technology has significant advantages: each weld point takes only a few milliseconds to several seconds to be welded, no additional solder is needed, significantly reducing production costs; the internal molten nucleus of the weld point is formed uniformly, the joint strength is high, the heat affected zone is small, the deformation is low, and the quality is stable.
Core Application Areas and Technological Challenges
Resistance welding is widely used in the industrial field. In automotive manufacturing, it is the preferred process for welding thin sheet metal of the vehicle body. An ordinary car body contains up to thousands of resistance welding points, and its high-speed and stable characteristics support the efficient operation of the assembly line. With the emergence of new materials and new technologies, resistance welding also faces multiple challenges: in terms of materials, the welding effect is unstable for high thermal conductivity metals (such as aluminum alloys, copper alloys); the welding smoke contains fine particles, and if protection is insufficient, it will harm the workers' health.
Tai'an Xutai Machinery Welding Boom: Synergistic Enhancement of Welding Efficiency and Environmentally Friendly Features
The welding boom produced by Tai'an Xutai Machinery Co., Ltd. is mainly used for welding workpieces with carbon dioxide gas shielded welding. It is an innovative solution specifically targeted at the pain points of resistance welding workshops. This equipment is supported by a modular boom system to support the wire feeder, welding gun, and dust collection device, achieving three major functional breakthroughs. The welding boom adopts a multi-section arm design (single section, double section to triple section arms), and the welding boom can rotate horizontally 180°-360°, covering a working area of 2-13 meters. Workers only need to move the lightweight welding gun to precisely weld at any position, without dragging heavy equipment. The upper part of the welding boom is equipped with a dust collection device, which moves synchronously with the welding gun, capturing 90% or more of the welding smoke at the source of the welding point. This not only reduces dust pollution in the workshop but also directly reduces the occupational health risks of workers. Cables and other items are neatly fixed on the welding boom, avoiding the common problems of wire entanglement and wear in traditional welding, and the workshop space has been optimized.