Drilling seems simple, and it is actually a complex process. The drilling of the part without a plan can ensure that the cutting blade of the-tingling cut is too uniform, which causes premature wear.
During drilling in non-plans, there is a risk of biases. To avoid this situation, the general principle is to reduce the flow during drilling.
1 、Raised surface
If the radius is greater than 4 times the diameter of the diameter and the holes are perpendicular to the department, they can be drilled. During the drilling process, the food supply will be reduced to 50% of the normal supply rate.
2, concave surface
If the radius is greater than 15 times the diameter of the diameter and the hole is perpendicular to the radius, it can be drilled. During the drilling process, the food supply will be reduced to 25% of the normal supply rate.
3, slope
If the inclination angle is less than 10 °, the food supply will be reduced to 1/3 of the normal power flow during the drilling process. If the tilt angle is greater than 10 °, it is not recommended to enter. Raw a small plan on the surface, then pierce.
4. Irregular surface
Reduce the supply speed to ¼ of the normal supply rate to avoid cutting the blades.
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