According to CNC turning-milling compound processing manufacturers, there are two main processing forms of turning-milling compound processing: contour processing when the workpiece is parallel to the tool axis; surface processing when the workpiece is perpendicular to the tool axis. Contour turning and milling combined machining is similar to the use of spiral interpolation milling to process the inner and outer contours of rotating workpieces; while face machining type turning and milling combined machining can only process the outer surface.
Although turning-milling combined processing looks very similar to turning processing, it is as simple as turning with a rotating milling cutter, but the two processing methods are essentially different. The cutting speed of turning-milling compound processing is determined by the rotation speed of the milling cutter; the cutting speed, which is different from turning processing, is defined by the rotation speed of the workpiece. The rotational speed of the workpiece in the turning-milling compound machining is only related to the feed.
Turning and milling composite processing has its own application fields and advantages
First, machining discontinuous surfaces can lead to intermittent cutting, such as when machining various grooves and cleaning roots. In classic turning processing, this operation can produce impact loads that are not conducive to processing, resulting in poor surface quality and premature tool wear. In the combined turning and milling machining, the tool used is a milling cutter, and the milling itself is intermittent cutting with periodic load changes.
Second, when the processed material is a long chip material. CNC turning-milling composite processing manufacturers analyze that in turning processing, chip forming is difficult to deal with; finding suitable chipbreakers for turning tools is not so easy to complete. The milling cutter used in turning-milling composite processing produces short chips, which significantly improves the control of chips.
Third, CNC turning and milling composite processing manufacturers analyze, take the processing of crankshafts and spindles with eccentric journals as examples. In turning processing, the eccentric quality of workpieces such as crank journals and eccentric cams can cause unbalanced forces. Machining produces adverse effects, and turning-milling composite machining avoids such negative effects due to the low speed of the workpiece.