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Difference between ultrasonic welding and laser welding
Latest company news about Difference between ultrasonic welding and laser welding

Laser technology uses a polarizing mirror to reflect the laser beam and focus it on a focusing device to generate a beam of huge energy. The focus of the laser emitted by the pulse instantly reaches thousands of degrees Celsius, and the metal material will be melted and evaporated within a few milliseconds. One effect is to perform the welding of the core collector channel of the solar heat collector and the highly selective heat absorbing coating, and a welding point is spaced 3 to 5 mm apart on the solar heat absorbing film layer.

 

It is non-contact welding, and it can travel a long distance before it is highly concentrated to provide welding, cutting and heat treatment functions. Its advantage is that it does not require pressure on the workpiece to be welded, the overall deformation is small, and the surface of the heat-absorbing coating can be damaged to a small extent. This is also an important reason why the industry-oriented laser welding is superior to ultrasonic welding, but laser welding will change the physical structure of the object being welded, reduce the mechanical strength, and have a certain impact on the thermal conductivity.

Ultrasonic welding is the use of high-density energy generated by high-frequency mechanical vibration of the ultrasonic to plastically deform the workpiece surface and destroy the surface layer under pressure, so that the welded metal is physically connected at normal temperature. Although ultrasonic welding destroys about 3% of the film layer, it is relatively good in terms of heat transfer efficiency because it is a continuous non-melt welding. At the same time, in terms of material cost, ultrasonic welding has certain advantages. Ultrasonic welding is suitable for thin products. The mainstream flat product copper plate in the world is generally between 0.12mm and 0.2mm. In order to consider material costs, some companies now choose aluminum plates. -0.3mm is fine.

 

Ultrasonic metal spot welding machine is used for the similar welding of metals, and can perform single-point and multi-point short strip welding on thin materials of non-ferrous metals such as copper, silver, aluminum, and nickel. It can be widely used in fusible link lithium batteries. Welding of various shapes such as poles. The laser welding is suitable for thick materials, such as the thickness of the aluminum plate is generally selected 0.4mm, resulting in higher material costs. Ultrasonic welding machine is suitable for welding relatively thin products, laser welding will directly penetrate the thin. Another important aspect is that the price of laser welding machines is several times more than that of ultrasonic welding machines.

Pub Time : 2020-12-16 10:48:36 >> News list
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