Main Types of Welding Processes And Their Processes

Main types of welding processes and their processes

Welding, as an important process technology, is widely used in various industrial fields. Different types of welding processes have their own unique characteristics and application ranges. Below, we will introduce several common welding processes and their processes in detail.

1. Gas welding

Gas welding is a welding method that uses a gas flame as a heat source. Its main processes include:

1> Preparation: Clean and prepare the surface to be welded to ensure that it is free of oil, rust or other impurities.

2> Adjust the flame: According to the welding material and thickness, adjust the ratio of oxygen and combustible gas to obtain the appropriate flame temperature and shape.

3> Welding: Aim the welding torch at the part to be welded, let the flame heat the material to a molten state, and then add solder to fill the weld.

4> Cooling and inspection: After welding is completed, let the weld cool naturally, and perform quality inspection to ensure the quality of welding.

2. Arc welding

Arc welding is a welding method that uses an arc as a heat source. Its main processes include:

1> Preparation: It is also necessary to clean the surface to be welded and prepare suitable welding rods and welding equipment.

2> Arc ignition: The arc is initiated by briefly contacting the part to be welded and the welding rod.

3> Welding: Maintain a certain arc length and welding speed to make the arc burn stably and heat the material to a molten state. At the same time, the welding rod is continuously added to fill the weld.

4> Arc extinguishing and inspection: The arc is extinguished when the welding is completed, and the weld is inspected for quality.

3. Laser welding

Laser welding is a high-precision and high-efficiency welding method that uses a laser beam as a heat source. Its main process includes:

1> Preparation: Clean the surface to be welded and ensure that its position is accurately aligned. Prepare laser welding equipment and necessary auxiliary tools.

2> Adjust laser parameters: Set appropriate laser power, wavelength, pulse frequency and other parameters according to the welding material and thickness.

3> Welding: Start the laser equipment and irradiate and heat the part to be welded to a molten state, and fill and connect the weld by moving the laser beam.

4> Cooling and inspection: After the laser welding is completed, the weld is cooled quickly and quality inspection is performed to ensure that the welding quality meets the requirements.