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磨立铣刀外圆齿的后隙面,为磨出铣刀后角,一般是使砂轮轴线平行铣刀中心线,齿托低于铣刀中心一个距离,磨出的后隙面实际是一个凹弧面。这种铣刀在切削强度较高的材料时,就显出刚性差、铣刀振动大、零件表面光洁度差、刀具磨损快等缺点。为此,我们改变了刃磨方法,磨出了一种鼓背齿铣刀,避免了上述缺点。所谓鼓背齿铣刀,就是立铣刀的外圆刀齿的后隙面是阿基米德螺旋线的一部分(在径向截面中),即铣刀后隙面是鼓背,而不是凹弧。
Grinding mill milling cutter backlash, to mill out the cutter angle, the general is to make the grinder axis parallel to the milling cutter centerline, the denture is lower than the mill center distance, the grinding backlash is actually a Concave surface. This cutter in the high cutting strength of the material, it shows poor rigidity, milling vibration, poor surface finish parts, tool wear and other shortcomings. To this end, we have changed the sharpening method, grinding out a drum back tooth cutter, to avoid the above shortcomings. The so-called drum back tooth cutter, is the backlash of the outer cutter of the endmill is part of the Archimedes spiral (in the radial cross-section), that is, the backlash of the cutter is the back of the drum rather than the recess arc.