Application status of turning milling compound machining in aerospace manufacturing
At present, turning milling combined CNC machining center and system is the most efficient means to solve the processing of impellers, blades, marine propellers, heavy generator rotors, steam turbine rotors and large diesel engine crankshafts. Turning milling combined machining center has the characteristics of high efficiency and high precision. The workpiece can be clamped once to complete complex processing, which can adapt to the processing of modern molds such as auto parts, aircraft structural parts and so on.
There is a big difference between turning milling compound machining center and pentahedral machining center. The turning and milling compound machining center has five axes: X, y, Z, a and C. The X, y, z axes and a and C axes form the turning and milling compound linkage processing, and it is good at spatial surface processing, special-shaped processing, hollowing processing, drilling, oblique hole and oblique cutting. The "pentahedral machining center" is similar to the three-axis machining center, but it can make five faces at the same time, but it can't do special-shaped machining, oblique drilling and oblique cutting. Typical cases, such as Okuma turn milling composite series fist product multi B300 II (see Figure 1), have been highly evaluated. The equipment adopts thermo friendly concept (thermal affinity concept), which ensures its stable processing accuracy, and realizes safe operation with collision avoidance system. Through turning and milling, it can realize the integrated rough and finish machining of all turning, milling, drilling, tapping, deep boring and other processes from the blank to the finished product at one time.
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