等螺旋角锥度铣刀,由于克服了一般锥度螺旋铣刀,在铣制中不可避免地产生小端螺旋角小,前角变负,大端螺旋角大,并且刮前刃的缺点。在使用中,铣削轻快,排屑流畅;在制造中,便于刃磨,已经得到了广泛应用。在等螺旋角锥度铣刀的制造中,其关键是如何铣出等螺旋角来。目前,在一般万能工具铣床上加工,主要有两种方法。一种是变导程法,一种是变 Such as helical angle taper cutter, due to overcome the general taper helical cutter, milling inevitably produce small-end helix angle, rake angle negative, large helix angle, and scraping the front edge of the shortcomings. In use, milling light, chip fluffy; in manufacturing, easy to sharpening, has been widely used. In the manufacture of equal helical taper milling cutters, the key is how to mill equal helix angles. At present, there are mainly two methods for processing on general universal tool milling machines. One is to change the lead method, one is to change