弧齿锥齿轮和准双曲面齿轮刮削新刀盘设计

在弧齿锥齿轮和准双曲面齿轮的刮削加工工艺中，刮削刀盘需要采用大的负前角和大的负刃倾角，已有的“斜角直线造形法”为解决刀具的强度和易崩刃问题，要求刀具的负刃倾角的绝对值要尽可能大，而此时造形误差又有较大的增加，本文提出“斜角圆弧造形法”既保留了斜角切削刮削刀刃强度好和抗冲击性能好的优点，同时又使造形误差大大减小，抗崩刃能力也得到了增强。

Design of new hard skiving cutter for spiral bevel and hypoid gears

In the process of skiving for Spiral bevel and hypoid gears, skiving cutter adopts larger negative rake angle and negative tilt angle. The existed Splay Linear Profile Design which purpose is to enhance the cutters intention and to protect easily distracted cutter edge, demands the larger negative tilt angle, but the profile error increases greatly. The thesis provides Splay Arc Profile Design, which reserves the splay cuttings merits of the better cutter edge intention and better anti-colliding, decreases the profile error greatly, also strenghen the anti-distracting ability for cutter edge.