螺旋角是螺旋槽铣刀的重要参数之一,要想知道它的实际螺旋角,就得进行测量与计算。通常是先测量螺旋槽的导程,再按公式算出螺旋角。在一般情况下,铣刀导程的测量是通过光学分度头与纵向测量显微镜配合使用测出数据,再通过计算获得。 Helix angle spiral groove cutter is one of the important parameters, in order to know the actual helix angle, you have to measure and calculate. It is usually to measure the lead of the spiral groove first, then calculate the helix angle according to the formula. Under normal circumstances, milling cutter lead measurement through the optical sub-head and longitudinal measurement microscope with the measured data, and then calculated.