The qualities to be achieved by laser welding
time：
2021-09-15
The general conditions required for the quality of "welded products" are as follows. Correctly finished to the designed dimensions. The required function and strength (or safety) are present. The appearance of the welded part meets the required grade.
The general conditions required for the quality of "welded products" are as follows. Correctly finished to the designed dimensions. The required function and strength (or safety) are present. The appearance of the welded part meets the required grade. The basic conditions of "weld quality" required to produce such high quality products are shown in the following items. No cracks or holes in the weld. Uniformity of the weld waveform, width, height, etc. The surface is basically free of distortion and conforms to the design dimensions.
The weld can reach the specified strength. The required rigidity is obtained by differentiating between "full penetration welding", which completely integrates two base materials, and "welded joints", which include "partial penetration welding". Download Welded joints and quality "The strength of welded joints is considered to be the same as that of the base material" except for some special base materials. There are many types of welded joints depending on the joining method of the base material, and the weld strength varies depending on the welding method between base materials and the weld area. Therefore, in order to perform high-quality welding efficiently, it is also necessary to pay attention to the direction of force applied to the product after welding. In addition, the depth of melt of the welded joint is very important for the weld strength, quality and operational efficiency, and needs to be used differently depending on the shape of the base material and the required strength.
Bevel (groove) welding is performed by creating a groove called a bevel (groove) in the base material. There are two types of welding: "full penetration welding" in which the base material is completely incorporated, and "partial penetration welding" in which the base material is partially melted. Fillet welding is a triangular type of welding that joins two almost perpendicular faces of the base material, such as "T-joints," "cross joints," and "corner joints. Plug (bolt) welding is a joint welded after overlapping the parts and making a hole on one side. Groove welding is a joint welded after opening an elliptical elongated groove different from the hole in plug welding. "Bevel welding" and "fillet welding" are called ordinary welding joints, while "plug welding" and "groove welding" are called special joints. "Butt welding" refers to the welding of two base materials with joints located almost on the same side, but in "T-joints" and "corner joints" that are not on the same side, if they are full penetration But in "T-joints" and "corner joints" that are not on the same side, if they are fully fused, they can also be called "butt welding.
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