20 century 80's in the late period, along with the machining center function and the structure of the perfection, showed the superiority of the numerical control machine tool of this kind of working procedure concentration, began to appear turning center, grinding center and so on, so that the compound processing is extended and no longer limited to boring, milling and other working procedures. In the late 1990s, it further developed the turning milling center, milling turning center, turning grinding center, etc. In recent years, it also appeared by laser, electric spark and ultrasonic and other special processing methods and cutting, grinding processing method combination of compound machine tool, so that compound processing technology has become a new hot spot to promote the development of machine tool structure and manufacturing technology. Compound processing machine tool highlights the workpiece in a card to complete most or all the processing process, so as to reduce the machine tools and fixtures, improve the workpiece processing accuracy, shorten the processing cycle and save the working area.From the rigidity and precision of the bed The difference with other similar products lies in that: the machine adopts the integral 60° inclined bed design, X, Y, Z axis adopts super-size linear guide rail, adopts gear drive mechanical spindle, each slide seat and spindle system is clamped by a specially designed clamping system. X and Y axes are equipped with heidheim glass grating ruler. According to German VDI/DGQ 3441 standard, the positioning accuracy is less than 0.005mm, and the repetition accuracy can reach 0.001mm(depending on machine tool model and control axis). The WFL turn-milling complex machining center not only achieves extremely high positioning accuracy, but also measures and compensates for errors caused by unavoidable external factors, such as temperature rise of machining parts, tool wear, geometric deformation of parts, and errors caused by tools and clamping devices. Specifically to compensate for this error, WFL developed a unique software package that simultaneously converts the MILLTURN mill into a true 3D measuring machine. The measurement results can be used to correct the above errors under the same loading condition. All measurements and tool parameters can be stored on hard disk, printed directly from the machine tool or transmitted over Ethernet for further processing.