The Solution To The Problem Of Metal Stamping Burrs

1,Consider glitches in product design.

In product design, the designer must first know which parts of the product are prone to burrs. Change the design of the part in advance to eliminate the adverse effects of burrs

2,In the process of designing and using the mold, ensure a reasonable gap between the convex and concave molds. When designing the blanking process, it is necessary to combine experience and select a reasonable mold gap according to the material and thickness of the blanking parts. At the same time, certain measures are also taken to reduce the wear of the mold (such as increasing the pressing and ejecting mechanisms, improving the service life of the mold, appropriate lapping, selecting a punch with good rigidity, etc.), which can effectively eliminate and reduce burrs.

3, to ensure the accuracy of mold manufacturing.

The mold manufacturing accuracy directly affects the quality of the stamping parts. Low mold accuracy will cause burrs, and the burrs are unevenly distributed. Generally, the working and guiding parts of the blanking die are manufactured according to the precision of IT8~IT7 level. During installation and debugging, the convex and concave dies should be concentric and the gap should be uniform.

4,Improve the state of the die edge.

The size of the burr of the stamping part is related to the state of the die edge. The smoother the cutting edge surface, the smaller the burr, that is, increasing the hardness of the die cutting edge and reducing the surface roughness can reduce the burr.

5,High-precision and high-speed punching machines are preferred

The punching equipment affects the burr size by its own precision. The increase of the punching speed reduces the friction coefficient and can reduce the wear of the mold; therefore, when the equipment conditions and production conditions allow, high-speed high-precision punching machines and high-precision stamping equipment should be selected.