Cutting Force Modeling and Experimental Study for Ball-End Milling of Free-Form Surfaces

Table 4

Lead angle and tilt angle corresponding to each tool point in free-form cutting experiment.

Tool point	1	2	3	4	5	6	7	8
Lead angle az/°	−0.32	−0.31	−0.29	−0.27	−0.27	0.25	−0.23	0.22
Tilt angle ac/	−51.4	−51.2	−50.7	−50.2	−50.0	−49.5	−49.0	−48.7