Zhongshan Precision Sheet Metal Manufacturer: Let's talk about sheet metal processing technology and the factors affecting accuracy

　　Zhongshan Precision Sheet Metal Manufacturer: Sheet Metal Processing Technology

　　The process methods include the arrangement of the process flow, the connection between processes, the selection of process processing methods (such as the selection of processing environment conditions, the configuration of process equipment and the selection of process parameters), and the preparation of process processing guidelines (such as process flow cards, machine tool operating procedures, operating procedures, process quality analysis tables, etc.). The influence of process methods on process quality mainly comes from three aspects:

　　First, the correctness and rationality of the processing method, the selected process parameters and process equipment, etc.

　　Second, the seriousness of the implementation process method.

　　Third, the execution of the process between supervisory departments.

　　What are the factors affecting the processing accuracy of parts?

　　In precision sheet metal processing, the processing accuracy of parts fundamentally depends on the tool tip of the workpiece and the tool, and their position and stress relationship during the processing process. In the process of contact between the tool tip and the workpiece, various errors will be generated in the process system, affecting the processing accuracy of the parts.

　　 Zhongshan Precision Sheet Metal Manufacturer: The main factors affecting processing accuracy include the following three aspects

　　1. Clamping stress deformation: Under the action of clamping workpieces, parts are prone to deformation, which affects the dimensional accuracy and shape accuracy of the workpieces.

　　2. Cutting and heating deformation; Under the heat of sheet metal cutting, the workpiece undergoes thermal deformation, making it difficult to control the workpiece size.

　　3. Vibration deformation of parts: Under the action of cutting force (especially lateral and longitudinal cutting force), vibration deformation is easily generated, which affects the dimensional accuracy, shape, positional accuracy, and surface roughness of the workpiece.

　　Zhongshan Precision Sheet Metal Manufacturer: How to control the bending accuracy of sheet metal within ±0.10mm

　　CNC bending machines affect bending accuracy, slider stop position affects bending angle, and back gauge position affects bending size. These require better CNC bending machines to solve.

　　The experience and skills of the operators affect the bending accuracy. When the worker pushes the material, if the force is too large or too small, it will cause positioning gaps or sheet bending, affecting the bending dimensional accuracy; if the worker's bending speed is out of sync with the machine speed, it will cause the bending angle to be too large or too small. Solution: Bending workers need to be skilled and experienced, and operators should not be changed frequently.

　　Zhongshan Precision Sheet Metal Manufacturer: The bending coefficient affects the accuracy of the bending size. The bending size of the sheet metal has been determined during the production of the unfolded drawing. In the unfolded drawing, the bending coefficient is the key factor determining the bending size. Inaccurate calculation of the unfolded drawing directly affects the dimensional accuracy of sheet metal bending. Solution: Sheet metal technicians are familiar with the principle of sheet metal unfolding and can accurately determine the accurate bending coefficient based on theory and practice.

　　 Zhongshan Precision Sheet Metal Manufacturer: The quality of the material affects the bending accuracy. The thickness of the material directly affects the bending coefficient, which in turn affects the bending accuracy. Solution: Purchase from large steel mills, strengthen thickness and size inspection. Different mechanical properties of materials will also affect the dimensional accuracy of bending, such as whether the steel plate is soft or hard, resulting in different elongation amounts. Solution: Use the same batch of steel plates to make a sheet metal product to check the bending coefficient of the same batch of steel plates.

　　Okay, thank you for watching. The editor will not give too much explanation. Let's see you next time.