摘要
给出了矩形花键螺旋沟拉刀一次成型的数学模拟，并用实例验证了模拟的可靠性。
This paper presents a mathematical simulation of one-time-shapedrectangular helical spline，and the results are given to prove its reliability.
关键词
拉刀
数学模型
花键螺旋沟
拉削
broach；tooth shape＇s deviation；mathematical model
