1. Limited by the diameter, the boring cutter has small diameter, large length, poor stiffness and low compressive strength, which is easy to cause vibration during cutting Wavy lines Finish, which endangers the parallelism and surface roughness of deep holes.
2. When drilling and deep holes, the refrigeration lubricant is difficult to enter the cutting area without special equipment, which reduces the cutting performance and chip removal. Deep hole drilling
3. During the working process of shallow hole, you can't immediately observe the cutting condition of NC blade, but only listen to the sound of cutting based on your working experience Look at the chips Touch the vibration and workpiece temperature of the product with your hand Watch the instrument panel (pressure meter and watt hour meter) to identify whether the cutting process is normal.
4. It is difficult to clean the chips. A firm way must be used to cut and manipulate the length and appearance of the chips, so as to facilitate smooth cleaning and avoid chip blockage.
5. In order to ensure the smooth development of deep hole in the production and processing process and achieve the specified production and processing quality, NC blade internal (external) chip removal machine equipment shall be added CNC blades encourage and support machinery and equipment and high-pressure refrigeration petroleum machinery and equipment. The depth of the general is 5 times the diameter of the hole. It is called deep hole. Its difficulty coefficient is chip removal and refrigeration. The holes with small holes can be used with fried dough twist drill. In order to better remove chips, the iron pin will turn into thin strips and run out and make smaller fragments.
