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First, the bearing weight should be high. With the development of molds in the direction of large-scale, molds of several tons to several tens of tons are very common. Therefore, the requirements for the bearing capacity of the machine tools are higher, and the equipment must have characteristics of large load-bearing and high rigidity, and must also have a large enough table top. The size and working schedule are compatible with it.
Second, high-power high-speed machining. High-speed milling has shown great advantages in die machining. In order to adapt to the processing of the mold cavity surface, the tool radius should be smaller than the minimum circle radius of the cavity surface so as to avoid â€œinterferenceâ€ between the tool and the workpiece during the machining process. Because the tool diameter is small, the spindle speed is required to be very high. The spindle speed of foreign high-speed machining tools has reached 40,000 to 100,000 r/min, and the rapid feed speed can reach 30,000 to 60,000 minutes. Cavity and other parts of the mold parts are often finished in one clamping of the workpiece. Therefore, the spindle power is large. The spindle power of medium-size mold milling machines and machining centers is usually 10 to 40 kW, and some are even higher.
Third, multi-axis. The capability of multi-axis linkage and good deep hole cavity comprehensive cutting ability The mold cavity is mostly composed of complex space six curved surfaces and grooves, and many molds have deep hole cavities. In order to achieve high-precision, high-speed, and high-stability machining of 3D surfaces, the machine tool needs multi-axis linkage and has a good deep-hole cavity comprehensive cutting capability. A five-axis machining center can be used. In addition to the linear motion of three coordinates, there are two feed motions of the rotating coordinates. The milling head or table can be continuously rotated in multi-axis linkage, making it suitable for machining mould parts with complex cavity surfaces.
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Haoxia Trading Co., Ltd. , http://www.jiasongvalve.com