Sheet metal processing is the blanking or cold and hot forming of metal sheets, profiles and pipes without changing their cross-sectional characteristics, and then assembled by welding, riveting and bolting, and finally manufacturing the required The processing methods of metal components mainly involve various professional types of work such as fitter, blanking, stamping, metal cutting, welding, heat treatment, surface treatment, riveting, and assembly.
Characteristics of sheet metal processing technology: Sheet metal processing can be used to make products of various shapes, sizes and performances, and the manufactured steel structure products have high strength and rigidity, and can make full use of their carrying capacity. In the manufacturing process of sheet metal structures, the various parts that make up the structure can be assembled into components through welding, riveting, snapping or expansion joints according to certain position, dimensional relationship and precision requirements. Therefore, the design flexibility is great. Based on the above analysis, sheet metal processing mainly has the following characteristics: 1. Compared with the production and processing of forgings and castings, sheet metal components have the advantages of light weight, saving metal materials, simple processing technology, reducing production costs, and saving production costs. 2. Most of the welded sheet metal components have low machining accuracy and large welding deformation, so the post-weld deformation and correction amount is relatively large. 3. Since the welded parts are non-detachable connections, it is difficult to repair, so it is necessary to adopt reasonable assembly methods and procedures to reduce or avoid waste products. For large or extra-large products, it is often necessary to carry out on-site assembly, so it should be tested in the factory first. It is advisable to temporarily replace non-detachable connections with detachable connections during installation. 4. During the assembly process, selection, adjustment, and multiple measurements and inspections are often required to ensure product quality.
Application of sheet metal processing: Since sheet metal processing has a series of advantages such as high production efficiency, stable quality, low cost, and the ability to process workpieces with complex shapes, it is widely used in machinery, automobiles, aircraft, light industry, national defense, electrical appliances, household appliances, and daily necessities. It has a wide range of applications and occupies a very important position. According to statistics: sheet metal parts account for 60% to 70% of the entire automobile manufacturing parts; sheet metal parts in electronic products account for more than 85% of the total number of parts; sheet metal parts of daily necessities in the market account for more than 90% of all metal products. With the development of science and technology and the advancement of processing technology, a large number of sheet metal computer-aided design (CAD), computer-aided manufacturing (CAM), computer-aided process design (CAE) and other new technologies and a large number of CNC cutting, forming, welding, etc. New equipment (such as: laser cutting, plasma cutting, water cutting, CNC rotary head presses and CNC bending, welding manipulators, welding robots, etc.) have been widely used in various industries. At present, sheet metal processing technology is striving to develop in the direction of high speed, automation, precision, safety, etc.
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