Customized metal stamping parts, what are the common mold problems + 20000+ sets of mold production experience

The hardware technicians of the manufacturer responsible for customizing metal stamping parts said that the punch is a stamping press. In ordinary production, the stamping process has the advantages of saving materials and costs compared with traditional machine processing, high output, low requirements for the operator's skills, and the use of various molds to make products that cannot be reached by machine processing. Therefore, it The usefulness of is becoming more and more common. However, there will be more and more mold problems. The following Xiaoshuo will take a look: (1) The punch wears too fast and the mold gap is too small. Usually, the total mold gap is 15% of the material thickness, 25 %. Convex and concave molds have poor alignment, and the mold base, mold guide components, and turret inserts are not accurate enough to cause molds to be out of order. The temperature of the punch is too high, mainly due to the long-term uninterrupted production, which makes the punch forming punch overheated. The mold sharpening method is wrong, resulting in mold annealing and increased wear. Part of the unilateral punching, such as nibbling, angle of attack or shearing, the lateral force of the aluminum alloy door and window accessories will make the punch tilt to one side, and the gap on this side will decrease, resulting in severe mold wear. If the machine tool mold installation accuracy is not High, it may also cause the punch to deviate from the upper die, causing damage to the punch and die. (2) Mold stripping problem Mold stripping will cause scrap rebound. The related factors: the sharpness of the die edge. The larger the rounded corner of the edge, the easier it is to form scrap rebound. The modulus of the mold, the modulus of each upper position of the machine tool is affirmative, the large modulus of the mold is small, and it is easy to form scrap rebound. The gap of the mold needs to be reasonable. If the gap of the mold is not suitable, it is easy to form a scrap rebound. Whether there is more oil on the surface of the processed sheet. The original spring has been damaged. Ways to prevent mold stripping: Use special anti stripping concave molds. Aluminum alloy door and window parts molds are often sharpened to keep sharp, and demagnetized. Increase the die gap. Adopt oblique edge n die instead of flat edge die. The mold is equipped with an ejector. Properly increase the modulus of the mold. Check the degree of wear of the mold spring or discharge sleeve. (3) When the mold is in use with the neutral mold, it is easy to cause a difference in the amount of wear on each side of the punch. Some parts have larger scratches and wear faster. This situation is particularly significant on narrow rectangular molds. . The main reason for this problem: the machine tool turret design or machining accuracy is not enough. The main reason is the poor alignment of the mold mounting seat between the upper and lower turntables. The design or accuracy of the mold cannot meet the requirements. The precision of the guide sleeve of the mold punch is insufficient. The mold gap selection is inappropriate. The mold mounting seat or mold guide sleeve is not well neutral due to long-term wear and tear. In order to prevent the mold from wearing out of synchronization, you should: Regularly maintain the center mandrel to perform neutral inspection and adjustment on the machine tool turret and mounting seat. Replace the mold guide sleeve in real time and choose the convex-concave mold with appropriate clearance. Use full lead molds. Enhance the operator’s sense of responsibility and find out the cause in real time after discovery, so as to avoid larger accidents. Hardware, 15 years of focus on customized hardware stamping parts, 20,000+ sets of stamping die customization production experience, monthly processing capacity of 100+ sets of molds, hundreds of precision processing production equipment, daily production capacity of 3 million punches, and silk-like stamping accuracy up to 0.01 mm, the raw materials are imported and the original national standard factory, and 16 quality inspections are strictly controlled. It can quickly solve time-critical problems for you, solve stamping accuracy problems, and solve production quality problems. Choose, choose to rest assured!