Mori Seiki and Delcam: Pinch Milling video

This video demonstrates an aluminium propeller blade machined on a Mori Seiki NT4300 using the technique of pinch milling: a method for machining long slender workpieces. 

Machining from both sides at the same time causes the radial forces on the part to cancel out, giving a much smoother finish, and allowing for heavier cuts.

Creating the toolpaths for 2 different tools simultaneously, one doing a semi-finishing job and the other a finishing job (which can be in full 5-axis), requires powerful CAM software such as Delcam's PowerMILL.