Dongguan Yixin Soldering Equipment Co., Ltd.

The working principle of spot welding machine is to use electric current and pressure to join metal pieces together through spot welding points. The following is the basic working principle of the spot welding machine:   1. Preparation: Place the metal pieces to be welded on the workbench of the spot welding machine, and ensure that there is an appropriate contact area between the metal pieces. 2. Electrode contact: The electrodes of the spot welding machine (usually made of copper) respectively clamp the metal sheets to be welded, so that the current can enter the metal sheets through the electrodes. 3. Apply pressure: The spot welder applies a certain amount of pressure to make the electrode and the metal sheet in close contact to ensure the smooth transmission of current and the stability of the welding joint. 4. Apply current: The spot welder applies high current pulses through the electrodes, usually in the millisecond range. This causes the metal in the welded joint to heat up and melt quickly. 5. Melting and solidification: As electric current passes through the welded joint, the metal at the joint quickly heats to high temperatures and melts. Once the current is disconnected, the metal cools rapidly and solidifies, forming a weld. 6. Detection and control: Some spot welding machines are equipped with detection and control systems for the welding process, which can detect the quality of welded joints and make adjustments and controls as needed.   The working principle of the spot welding machine is based on the principle of resistance heating and pressure connection. Through the action of current and pressure, the metal sheets are instantly melted and connected at the welding joint to form a strong welding joint. This welding method is usually suitable for situations where the metal sheets are thin and need to be connected efficiently, such as in automobile manufacturing and home appliance manufacturing.

Spot welding machines are widely used in the following industries:   1. Automobile manufacturing industry: Automobile manufacturing is one of the most important application fields of spot welding machines. Spot welding machines are used for car body welding to connect various body parts and metal sheets together through spot welding points, such as doors, roofs, body frames, etc. 2. Home appliance manufacturing industry: Spot welding machines are also widely used in home appliance manufacturing industry. For example, the metal casings of home appliances such as refrigerators, washing machines, and air conditioner casings are usually welded using spot welders. 3. Metal products manufacturing industry: Spot welding machines are also widely used in metal products manufacturing industry. For example, metal furniture, metal containers (such as oil drums), metal pipes, metal grids, etc. can all be connected using a spot welder. 4. Railway and shipbuilding manufacturing industry: The metal structures of railway vehicles and ships usually need to be connected using spot welding machines to ensure the strength and stability of the structure. 5. Construction industry: In the construction field, spot welding machines are used to connect metal components, steel structures, metal pipes, etc. 6. Electronic equipment manufacturing: In the electronic equipment manufacturing process, spot welding machines are used to weld electronic components and metal connections on circuit boards. 7. Other fields: Spot welding machines are also used in aerospace, power equipment manufacturing, instrument manufacturing and other fields to connect metal parts and structures. It is necessary to select suitable spot welding machine models and parameters according to specific industry and application requirements to ensure welding quality and efficiency.