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深孔加工效率低、质量差、劳动强度大,主要原因是排屑困难。钻头切削性能再好,排屑不好,还是无济于事。近半个世纪时间里,人们一直在想方设法改善或解决深孔加工中的排屑问题,枪钻和内排屑深孔钻是利用切削液的推力将切屑推出孔外,排屑能力强,但要求切削液压力高,密封复杂,需要专用设备。六十年代初,瑞典发明了喷吸钻,巧妙地利用了切削液高速流动时产生的真空效应将切屑吸出。切削液压力低,不必密封,不要求专用设
Deep hole processing efficiency is low, poor quality, labor-intensive, mainly due to chip evacuation difficulties. No matter how good bit cutting performance, chip removal is not good, or useless. Nearly half a century time, people are trying to find ways to improve or solve the problem of chip removal deep hole processing, gun drill and chip removal deep hole drilling is the use of cutting fluid thrust chip out of the hole, chip removal ability, but Requires high cutting fluid pressure, sealing complex, requires special equipment. In the early 1960s, Sweden invented a suction drill, clever use of the cutting fluid flow at high speed vacuum generated when the chip sucked out. Cutting fluid pressure is low, do not have to seal, does not require special design