Sheet metal parts refer to metal parts that have been processed by technology or machinery. Usually, metal raw materials are used to make them plastic deformation through process or stamping, and the shape formed usually meets the requirements of our rules. Molding can be divided into manual molding and mechanical molding. Process forming is usually used to make up for processing or trimming fields, and is rarely used. However, when processing some materials with disordered shapes or easy to deform, it is still inseparable from process molding.
Up to now, sheet metal processing is mainly used to manufacture the shells of some packaging equipment, such as cabinets, car bodies, stainless steel cases, computer cases, etc. Because sheet metal includes stamping, bending, shearing and cutting, most of the sheet metal is used for processing metal sheets, and a small amount of sheet metal is used for manufacturing.
Classification, processing and use of sheet metal parts
I Sheet metal parts can generally be divided into three categories:
1. Flat plate: refers to ordinary flat punching shear piece.
2. Zigzag type: bend and weld after opening with CAD according to the planning drawing.
3. Forming type: regular surface or free-standing surface parts processed by stretching and other forming methods. These parts are formed by stamping and deformation of flat blank, which is very different from the parts processed by the common machining method. In the stamping processing method, zigzag deformation is the main processing method to make sheet metal parts have disordered spatial position relations.
II Application scope of sheet metal processing:
Sheet metal parts are widely used in electromechanical, light industry, automobile and other fields. It includes the following aspects:
1. Automobile field
With the improvement of Chinese people's living standard, cars will enter thousands of households, which will promote the rapid development of the domestic automotive field. Auto manufacturers will outsource non base businesses while expanding production plans, so they will outsource some auto parts to Hefei sheet metal processing plant, which will supply, distribute and process automobiles.
2. Electronic communication field
The electronic field is a rapidly developing field in recent years, and also a field where sheet metal was widely used at that time. Due to the characteristics of rapid technology update, diversified products and timely production in this field, this field is facing a greater risk impact from the mall. Most well-known companies at home and abroad outsource the sheet metal business and use limited funds for technology development. These companies include Lucent, Bell, ABB, Nokia, Siemens, Alstom, Philips and Huawei., Their outsourced sheet metal processing business is worth tens of billions of yuan every year.
3. Elevator field
The elevator parts in other places are mostly sheet metal parts, and the types of elevator parts are complex. Each large elevator manufacturer has dozens of suppliers to distribute and process them. For example, Xizi Otis, Schindler, Mitsubishi, Hyundai, Hitachi and other famous elevator companies have their own stable suppliers, and their outsourced Guangzhou sheet metal business is about several billion yuan.
