Do you know how to effectively improve the quality of sheet metal processing? Improving the quality of sheet metal processing is the only way for sheet metal processing enterprises to improve their transaction resources; then how should they be used to improve the quality of sheet metal processing?
1. Do a good job of blanking sheet metal processing: Generally, there are four main methods of blanking in sheet metal processing, as follows: Shearing machine blanking: the use of a shearing machine to cut out the external dimensions, and then punching with a mold Wait for punching, cutting, etc., and then finish cutting. Laser cutting: This method uses laser cutting to cut out the desired structure shape. Blanking of punching machine: It is the use of a punching machine to punch and shape structures such as flat pieces, which can be completed in one step or completed step by step. NC blanking: It is the most commonly used, which is to realize numerical control through the programming of the program, and then the blanking of the structural shape can be performed, and then the blanking is completed. What qualifications should sheet metal processing personnel have? This score details what the goal is. If it is a junior sheet metal operator, it is required to be able to understand the drawings and the simple operation of the equipment without deepening and complexity. Intermediate requires that you can understand more complex drawings, but also have a certain physical knowledge. Therefore, different goals require different requirements.
2. Do a good job in cutting sheet metal processing: During the processing of sheet metal parts, some problems sometimes occur, such as laser cutting, so we should have some understanding of it, then the following is a brief Examine it. Deformation. The main reason is that instead of using explosive perforation when machining small holes, pulse perforation is used, which will affect the processing quality. glitch. The main reasons are: the up and down position of the laser focus is not correct, or the output power is not working, or the cutting speed is not working, the gas purity is not working, etc., so it must be analyzed in detail. It was not cut thoroughly when cut. The line speed of laser cutting is too fast, or the selection of the laser head nozzle does not match the thickness of the processing plate, this problem will occur, and then the processing quality will be affected.
3. Do a good job in the sheet metal processing center: To bend the sheet metal data, determine the tools and sipes used in the bending according to the drawing scale requirements and the thickness of the data to prevent the product from colliding with the tool. Cause deformation. In addition, the order of the bends is also very important, generally first inside, then outside, small first, then large, and special first. If the workpiece is to be crushed, it should be applied to a leveling die. For the pressure riveting of the workpiece, the height of the studs and the pressure of the press should be taken into account. In addition, the studs should be flush with the appearance of the workpiece to avoid making the workpiece useless. Welding in sheet metal processing generally includes hydrogen arc welding, spot welding, technical arc welding, and carbon dioxide maintenance welding. When making spot welding, the welding position must be considered. For the appearance processing in sheet metal processing, it is necessary to select according to the actual situation. If it is cold plate processing, it is generally first treated by plating, then phosphating, and finally sprayed. The spraying is divided into craftsmanship and initiative. In addition, after the sheet metal is processed, it is necessary to check the appearance, including dimensions, etc. If there is a problem, it should be repaired or directly discarded to ensure the processing quality.
4. Improve the sheet metal processing master’s technical level: sheet metal processing, the detailed technical requirements are: the appearance of the part, should be removed after the oxide scale, and check that there are no defects or damage before machining. If high-frequency quenching is to be performed, the tempering temperature should be within the required temperature range, and high-temperature aging treatment is required. If there is no requirement for shape public service, it should meet the requirements of the rules in GB1184-80, and the allowable error of its length should generally be within the range of ± 0.5mm. After the gear is installed, its tooth surface backlash should meet the requirements of the rules in GB10095 and GB11365. Before the parts are installed, some necessary inspection and cleaning must be performed to avoid bringing in foreign objects. In addition, check the fit clearance, etc.
Keyword: aluminum CNC machining