Why choose Dongguan custom metal stamping parts

The metal stamping parts or molds we usually see are usually ordinary blanking. Although the production efficiency is high and the service life is relatively long, the quality of the product section is relatively poor, and the size error is too large, and we often need to show the quality comparison in actual life. High metal stamping parts, hardware has been focusing on precision stamping for 15 years. The precision of metal stamping parts reaches ±0.01mm. At this time, we need to use fine blanking. What is fine blanking: Fine blanking belongs to non-cutting processing skills, which is a fine blanking method developed on the basis of general stamping skills. The effect of this processing method is that the punching surface of the punching part has no cracks and tears on the entire thickness of the material. In addition, the strictest dimensional accuracy and flatness tolerances can be reached. Features: Compared with the general punching, the fine blanking die structure has an extra ring gear pressing plate and ejector, and the gap between the convex and concave molds is extremely small, and the cutting edge of the concave mold has rounded corners. In the punching process, before the punch contacts the material, the ring gear presser plate is used to press the material on the die, and then lateral pressure is generated on the inner surface of the V-shaped tooth to prevent the material from tearing and the metal in the shear zone. Lateral movement, when the punching punch is pressed into the material, the back pressure of the ejector is used to compress the material, and the use of very small gaps and rounded edges of the die eliminates the stress concentration, and then makes the shear zone The metal inside is in a three-way compressive stress state, which eliminates the tensile stress in this area, improves the plasticity of the material, and fundamentally avoids the bending, stretching, and tearing phenomena that appear in general blanking, and makes the material follow the concave The edge shape of the die is punched into parts in a pure shearing manner, and then a high-quality bright and flat shearing surface is obtained. In fine blanking, the pressing force, the blanking gap and the rounded corners of the die cutting edge complement each other and are indispensable. Their influence is related to each other. When the gap is uniform and the fillet radius is appropriate, a bright section can be obtained with a small press material. Dongguan Hardware Co., Ltd. has 15 years of stamping experience and strong strength. It is the common choice of 1,300 well-known companies. Looking forward to your choice and cooperation!