The application of laser welding in stainless steel occupies a very important position, especially in the automotive industry, where all car bodies are connected by welding. However, due to various factors, there are deformation problems in the welding of 304 Stainless steel plates, and the control difficulty is high. Manufacturers of 304 stainless steel plates are not conducive to the sustainable development of related fields. Therefore, strengthening research on laser welding deformation of stainless steel plates is of great significance.
Laser welding mainly refers to a welding method that uses laser energy as a heat source to melt and connect workpieces. During the laser welding process, the laser is irradiated onto the surface of the welded material, and it reacts with it. The price part of a stainless steel plate is reflected, and the remaining is absorbed and enters the interior of the material to achieve the welding goal. In short, the process of laser welding is to use a high-power laser beam focused by an optical system to irradiate the surface of the welded material, and then fully utilize the material's absorption of light energy for heating. After processing the 304 stainless steel plate, it is cooled to form a welding joint.
The main factors affecting welding deformation are welding current, pulse width, and frequency. As the welding current increases, the width of the weld seam also increases, gradually leading to phenomena such as splashing, resulting in oxidation deformation on the surface of the weld seam, accompanied by roughness.
The total heat transfer coefficient of a metal depends not only on its thermal conductivity, but also on other factors.
In most cases, the heat dissipation coefficient of the film layer, rust scale, and the surface condition of the metal cannot maintain a clean surface. Therefore, its heat transfer performance is better than other metals with higher thermal conductivity. The technical standards for 304 stainless steel plate include corrosion resistance, bending processing performance, welding toughness, and stamping processing performance of high-strength stainless steel plate and its manufacturing method.
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