展成车刀廓形的解析解和确定工件节线位置的关系

Formed Turning Tool: The Solution of the Tools Outline andthe Position of the Workpieces Pitch-line

给出求展成车刀廓形通用的一种解析解，得出描述刀具廓形的极坐标方程．指出要加工出正确的工件廓形，工件节线位置的确定应使刀具极坐标方程中转角ψ为单调增函数．文中也给出求解工件节线位置的公式．

The analytic solution of the formed turning tool which worked by the principle of Plane meshinghas been given in this paper. For cutting the exactly outline of a workpiece. a function of the Ψ that isa parameter in the analytis colation must be a increasing function. A method to posit the pitch-line hasbeen given to suit the task.