How to program turn-milling compound?

It is difficult to complete the programming of CNC turning, multi-axis milling, 3+2 positioning machining, drilling and other machining methods. UGNX and CATIA systems have a combination of turning and milling NC machining programming modules. When roughing the rotary surface, inclined wall and contour cavity, solid, surface or curve can be used to define the area to be processed, cut most of the blank material, suitable for roughing all the outer shape and inner cavity of the rotary parts. During rough machining, the machining strategy of following parts is adopted, and the machining tool path is formed by shifting the same number of steps along the geometric boundary of parts. When intersecting, one of the tool path is trimmed off.
In this machining strategy, the margin around the island region can be effectively cleared, and this machining strategy is especially suitable for the hole machining with islands. Complex surface due to the ups and downs of the surface, slope changes, 3 axis CNC machining, cutting depth and cutting width constantly change, will cause unstable tool load, aggravate tool wear, reduce the quality of machining.

In the large degree of convex and concave parts of the surface is also prone to interference between the tool and the workpiece, resulting in serious consequences, positioning 3+2 machining mode can overcome the shortcomings of 3-axis CNC machining complex surface. Turning milling compound positioning 3+2 machining refers to the B and C axes are turned to a certain Angle and locked after processing, when the processing of one area is completed, and then according to the normal direction of another processing area to adjust the Angle of B and C axis to continue processing. Its essence is to change the five-axis linkage machining into a fixed Angle machining in a certain direction, and the direction of the tool shaft will not change in the machining process. Compared with 3-axis NC machining, 3+2 positioning machining has obvious advantages in efficiency and quality because it can realize machining by one positioning. Turn-milling multi-axis milling finishing solution. The machining method of multi-axis linkage is used to finish several complex debris surfaces of the cylindrical part of complex rotating parts. The machining geometry, driving mode and related parameters are selected. In the actual processing should make full use of the characteristics of the machine tool, effectively control the size of the swing Angle of the tool, so that the displacement and swing Angle between the good match, prevent the phenomenon of overcutting. In order to reduce the intensity of the change of the swinging Angle of the tool at the corner of the parts, the tool position of the transition should be properly increased when processing the corner of the parts, which is also conducive to the smooth work of the machine tool, avoid over cutting, improve the quality of the machining surface of the parts.