high-speedmilling——高速銑削(機(jī)械工程英文文獻(xiàn)及翻譯)-展示頁(yè)
2024-12-18 12:56本頁(yè)面
【正文】 ensity and high hardness processing Highspeed cutting a major feature of highspeed cutting machine has the hardness of HRC60 parts. With the use of coated carbide cutter mold processing, directly to the installation of a hardened tool steel processing forming, effectively avoid the installation of several parts of the fixture error and improve the parts of the geometric location accuracy. In the mold of traditional processing, heat treatment hardening of the workpiece required EDM, highspeed machining replace the traditional method of cutting the processing, manufacturing process possible to omit die in EDM, simplifying the processing technology and investment costs . Highspeed milling in the precincts of CNC machine tools, or for processing centre, also in the installation of highspeed spindle on the general machine tools. The latter not only has the processing capacity of general machine tools, but also for highspeed milling, a decrease of investment in equipment, machine tools increased flexibility. Cutting highspeed processing can improve the efficiency, quality improvement, streamline processes, investment and machine tool investment and maintenance costs rise, but prehensive, can significantly increase economic efficiency. 2 Highspeed milling Highspeed milling the main technical highspeed cutting technology is cutting the development direction of one of it with CNC technology, microelectronic technology, new materials and new technology, such as technology development to a higher level. Highspeed machine tools and highspeed tool to achieve highspeed cutting is the prerequisite and basic conditions, in highspeed machining in the performance of highspeed machine tool material of choice and there are strict requirements. Highspeed milling machine in order to achieve highspeed machining General use of highly flexible highspeed CNC machine tools, machining centers, and some use a dedicated highspeed milling, drilling. At the same time a highspeed ma chine tool spindle system and highspeed feeding system, high stiffness of the main characteristics of highprecision targeting and highprecision interpolation functions, especially highprecision arc interpolation function. Highspeed machining systems of the machine a higher demand, mainly in the following areas: General use of highly flexible highspeed CNC machine tools, machining centers, and some use a dedicated highspeed milling, drilling. At the same time a highspeed machine tool spindle system and highspeed feeding system, high stiffness of the main characteristics of highprecision targeting and highprecision interpolation functions, especially highprecision arc interpolation function. Highspeed machining systems of the machine a higher demand, mainly in the following areas: Highspeed milling machine must have a highspeed spindle, the spindle speed is generally 10000 ~ 100000 m / min, power greater than 15 kW. But also with rapid speed or in designated spots faststopping performance. The main axial space not more than 0 .0 0 0 2 m m. Often using highspeed spindlehydrostatic bearings, air pressurebearing, mixed ceramic bearings, magic bearing structure of the form. Spindle cooling general use within the water or air cooled. Highspeed processing machinedriven system should be able to provide 40 ~ 60 m / min of the feed rate, with good acceleration characteristics, can provide m/s2 to 10 m/s2 acceleration and deceleration. In order to obtain goodprocessing quality, highspeed cutting machines must have a high enough stiffness. Machine bed material used gray iron, can also add a highdamping base of concrete,
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