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在箱体零件的生产中,经常遇到一些与加工精密深槽有关,或者与提高被加工表面(这种表面用大尺寸端铣刀很难加工甚至无法加工)铣削效率有关的问题。在具体情况下,如果不改变铣刀齿的几何角度,仅仅加长它的工作部份的长度(1/d≤4,式中1—长度,d—工作部份的直径),实践表明不仅会缩短铣刀的寿命,而且还将影响被加工表面的质量。上述情况是由于铣刀的刚度不足、变形大的结果引起的。另外,随着切屑沿刀轴的螺旋上升,
In the production of box parts, there are often encountered problems related to the machining of precision deep grooves or to the milling efficiency of the machined surface that is difficult or even impossible to machine with a large end mill. In the specific case, if we do not change the geometrical angle of the cutter tooth, just lengthen the length of its working part (1 / d ≤ 4, where 1 - length, d - working part diameter), practice shows that not only Shorten the life of the milling cutter, but also will affect the quality of the machined surface. The above situation is due to lack of rigidity of the cutter, resulting in large deformation. In addition, as the chips spiral along the arbor,