In-depth analysis of precision stamping 'hardware'

What is precision stamping: precision stamping is classified as 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, strict dimensional accuracy and flatness tolerances can be achieved. 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 pressing plate is used to press the material on the female die by force, 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 shearing zone. Horizontal movement, when the punching punch presses the data, the back pressure of the ejector is used to compress the data, and the use of very small gaps and rounded corners of the die edge removes the stress concentration. Dongguan hardware, professional customization Production of precision stamping parts. Then the metal in the shear zone is placed in a three-dimensional compressive stress state, the tensile stress in this zone is removed, the plasticity of the material is improved, and the bending, stretching, and tearing phenomena that appear in general blanking are fundamentally avoided. The material is punched into parts along the edge shape of the concave die in a pure shearing manner, and then a high-quality bright and flat shearing surface is obtained. In precision stamping, 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.