On the Manufacture workspace toolbar, click the Turning tab > Turning > Turning Part .
The Part dialog opens.
On the Tool tab, click Select to pick a tool. If you have not created a tool to use, in the left panel of the Tool Library dialog, pick a tool from the Fusion Library, the Turning Tools library.
On the Radii tab, adjust the area to machine in X. Set the Outer Radius start point and the Inner Radius end point of the cut.
Optional steps:
To create a chamfer or radius on the back edge of the part, go to the Geometry tab and select the Edge Break Type checkbox.
To cut past the centerline, go to the Radii tab, adjust the Distance to Cut Below Inner Radius value.
To reduce the tool pressure before reaching the end of the cut, go to the Passes tab and select the Use Reduced Feed and Speed checkbox.
Click OK.
The toolpath looks as follows.
Turning Part - cutting off the part from the bar.