In modern manufacturing, welding has become an indispensable process. With the advancement of science and technology, welding has also undergone great changes. One of the most important aspects is the automation of welding.
The emergence of welding automation can not only greatly improve the power of welding, but also reduce labor intensity and eliminate unavoidable human factors. Among all the automatic welding methods, the most widely used are arc welding, spot welding and laser welding. Below, let's take a detailed look at these three automatic welding methods.
Arc welding
Arc welding is a welding technique in which an electric arc is placed in a weld so that the core in electrostatic or electrowinning welding melts, fills, and blends with the substrate. It is commonly used in melting electrode shielding gas welding (MMA), active gas tungsten argon arc welding (TIG-W), active submerged arc welding (SAW) or gas metal arc welding (GMAW) and other related fields.
The advantage of arc welding is that it has moderate power and can be used for the welding of most metal materials. At the same time, arc welding has a low cost and low impact on the environment, so it is widely used in the industrial field.
spot welding
Spot welding is a welding method that uses the electrode to pass pressure to cause instantaneous local heating between two points on the workpiece and apply welding pressure at the same time, and uses the permeability of molten metal to complete the connection of the weld. Spot welding is widely used in the manufacture of cars and home appliances.
The main advantage of spot welding is its high output power and the ability to complete multiple solder joints at one time, so it is widely used in the industrial field.
Laser welding
Laser welding is a welding method that uses a laser beam to generate a welding heat source, through heat conduction and melting metal, so that the position of the workpiece is welded. It is a high-precision and high-power welding method that has many advantages.
Laser welding has high energy density, high power and high precision welding results. Compared to traditional welding methods, laser welding has better control and higher reliability. It is widely used in the welding of metal materials, such as aviation, aerospace, military, cars, machine tools and other fields.
summary
After the introduction of the three automatic welding methods, we can see that arc welding, spot welding and laser welding have their own characteristics, and there are certain differences in the scope of use. In practical use, we should select the appropriate welding method in combination with practical needs to improve the output power and product quality.
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