JIATONG PRECISION SHEET METAL

The sheet metal process and the structural design of sheet metal parts are inseparable. It is necessary to closely combine the sheet metal process, improve the structural design level of sheet metal parts, and design the structural parts with processing technology, so as to reduce the production cost and improve the production efficiency. 1 Design of Bending Edge The shortest bending edge of sheet metal is affected by the V-shaped opening width of the bending lower die and the bending R angle. The limitation of the shortest bending edge should be properly considered in the design. Assuming that the width of the V-shaped opening of the die under bending is 12mm and the bending R angle is 0.5mm, the minimum short side of bending cannot exceed vi2 + R + 0.5 = 7mm. Designers should design according to the existing bending lower die specifications of the factory, so as to avoid many unnecessary molds customized by the factory, which greatly increases the processing and management cost of mo...

  The main ways to realize the   precision machining   of parts are: using high-precision machining machine tools to process high-precision parts; Use error compensation technology to improve the machining accuracy of parts. Mechanical processing mainly includes manual processing and numerical control processing. “Sheet metal is a comprehensive cold working process for sheet metal (usually less than 6mm), including shearing, punching / cutting / compounding, folding, welding, riveting, splicing and forming (such as automobile body) Etc. Its remarkable feature is that the thickness of the same part is consistent. The products processed by the sheet metal process are called   sheet metal parts . The way to distinguish whether a part is a sheet metal part or a machined part on a mechanical drawing is to see whether the thickness of the part is consistent. The thickness of sheet metal parts is consistent, while the thickness of machined parts is inconsistent.   ...

With the development of social economy and industrial progress, sheet metal parts are more and more widely used in our daily production and life. Automobiles, machine tools, and various household appliances all use a variety of sheet metal parts. Therefore, how to make sheet metal parts with good quality and beautiful appearance is particularly important.   The main raw materials of the sheet metal processing industry are non-ferrous alloy plates and thin steel. The non-ferrous metal industry and steel industry account for about 40% of the total cost of the industry. In addition, processing raw materials into sheet metal products requires forging machinery and molds. Therefore, the above four industries are the upstream of the sheet metal processing industry. Due to the wide range of application fields of sheet metal products, its downstream includes almost all manufacturing industries, mainly including communication electronics industry, automobile manufacturing industry, motorcyc...