使用数控冲床的几个技巧（Several techniques for using a numerical control punch）.docVIP

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使用数控冲床的几个技巧（Several techniques for using a numerical control punch）.doc

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使用数控冲床的几个技巧（Several techniques for using a numerical control punch）

使用数控冲床的几个技巧（Several techniques for using a numerical control punch） 1. Ensure optimum die clearance The gap of the die is the sum of the gap between the two sides. It is related to plate thickness, material and stamping process. Select the appropriate die clearance, ensure good punching quality, reduce the burr and collapse, keep the sheet flat, effectively prevent the material and prolong the die life. By checking the punching waste, it is possible to determine whether the clearance is suitable. If the gap is too large, the waste will have a rough and undulating surface and a smaller surface. The larger the gap, the greater the Angle of formation of the fracture surface and the light surface, and the opening of the hole will form the margin and fracture, and even a thin margin. On the other hand, if the gap is too small, the waste will have a small Angle fracture surface and a larger bright surface. When local grooving, step blunt, shear, as well as stamping, lateral force will make the punch deflection caused by unilateral gap is too small, sometimes scratch edge offset in the lower die, cause rapid wear from mould. When the die is pressed in the best gap, the fracture surface of the waste and the surface of the light have the same Angle and overlap with each other, so that the blanking force is minimal and the burr of the punching hole is small. Second, the timely cutting can effectively prolong the service life of the die If excessive burr or stamping of the workpiece produces abnormal noise, the mold may be passivated. Check the punch and the bottom die, when the edge of the edge wear out radius about 0.10 mm arc, it will be cut. Practice shows that the regular micro grinding rather than wait until the grinding and grinding, will not only keep good workpiece quality, reducing the cutting force, and can make the die life extend more than double. In addition to knowing when the die will be sharpened, it is especially important to master the correct sharpening me