CNC lathe; variablepitchscrew; NC Program; on the cutting point; graphic method;
数控车; 变螺距螺杆; NC程序; 起刀点; 图解法;
2
Compression cancellous bone screw with both ends thread is a Variablepitchscrew designed tO provide rigid 'fixation of cancellous bone fracture.
双端螺纹松质骨加压螺钉的特点是两端螺纹具有不同的螺距,无螺帽。
3
Programming by the plane curve unwrapped from the helix curve and cutting layer by layer, we created the variablepitchscrew on the 3.5 axis NC milling.