Because most sheet metal manufacturing is the production and manufacturing of cold or hot separation and forming of raw materials without changing the cross-sectional characteristics of sheet metal materials, aluminum profiles and pipe fittings. Moreover, the produced metal material causes plastic deformation below the manufacturing hardening temperature, so it does not cause cutting.
It can be made into a variety of goods with different shapes, specifications and characteristics, and the steel frame structure goods produced and manufactured have high compressive strength and bending stiffness, which can make full use of its bearing capacity. In the whole production and manufacturing process of sheet metal structure, each accessory constituting the structure can be assembled into prefabricated components according to the position, specification correlation and precision regulations, and according to the connection methods such as electric welding, riveting, bite or expansion. Therefore, the coordination ability of the design scheme is large. Based on the above analysis, the key features of sheet metal manufacturing are as follows:
① Compared with the manufacturing of forged and cast parts, sheet metal prefabricated components have the advantages of light weight, saving metal composites, simple manufacturing process, reducing product cost and saving production cost.
② Most of the sheet metal prefabricated components manufactured by laser welding have low manufacturing accuracy and large welding deformation, so there is a large amount of deformation and correction after welding.
③ Because the weldment cannot be disassembled and connected and cannot be repaired, it is necessary to adopt useful assembly methods and assembly procedures to reduce waste. It is often necessary to carry out on-the-spot assembly for large, medium-sized or large commodities, so it should be tried in the factory first. In the trial, the detachable connection should be used to temporarily replace the non-detachable connection.
④ In the whole process of assembly, it is often necessary to select, adjust and accurately measure and test the product quality(sheet metal cabinet) for several times.
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