Laser welding is a laser beam fusion material that uses extremely high energy density. It has the advantages of fast welding speed, high strength, narrow weld seam, small heat affected zone, small amount of workpiece deformation, less processing work and high flexibility. Laser welding not only welds common carbon steels and stainless steels, but also welds materials that are difficult to weld with conventional welding, such as structural steel, aluminum, copper, etc., and can weld various forms of welds.
Modern sheet metal manufacturing has higher and higher requirements for the quality of welding strength and appearance, especially for components with high added value and extremely high welding quality, which can be completed without subsequent processing or minimal subsequent processing. However, the traditional welding method, due to the extreme heat input, inevitably causes problems such as distortion of the workpiece. In order to compensate for the problem of workpiece deformation, a large number of subsequent processing methods are required, thereby increasing the expenditure.
Laser welding has a small heat input, and the heat-affected zone is extremely small, which significantly improves the quality of the welded product and reduces the time for subsequent work. In addition, since the welding speed is fast and the welding aspect ratio is large, the welding efficiency and stability can be greatly improved. Therefore, the application of laser welding in sheet metal manufacturing is becoming more and more common.
Laser welding: a tool that combines into one
In modern sheet metal manufacturing, different products have different requirements for the quality of welding strength and appearance. For example, the appearance of elevators, kitchen utensils, and food equipment requires a very beautiful, smooth, and non-deformable welding effect. Some internal structural parts or parts that need to be sprayed later have higher requirements on welding strength and welding speed. This is precisely the advantage of laser welding, because laser welding can achieve the heat conduction welding of the weld beautifully, and also realize the deep welding of high welding strength and high welding speed.
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