CNC machining method also involves die casting process

CNC machining will also involve die-casting process. In the industrial field, precision metal parts can be divided into many kinds. Because the technology involved in each industry is different, the parts used are also different. Due to the different shapes of parts, in many cases they need to strengthen their quality and related attribute functions through various machining methods. Nowadays, CNC machining has been extended to various manufacturing fields, among which CNC machining is also a common means to strengthen metal products. With the continuous improvement of technical characteristics, its machining quality is also gradually upgraded and transformed.

The die-casting process in CNC machining is a process that unifies the pressure, speed and time by using the three major elements of machines, molds and alloys. For metal hot working, the existence of pressure is the main feature of die-casting technology that distinguishes other casting methods. CNC die casting is a special casting method with little or no cutting, which has developed rapidly in modern metal machining technology. It is a process in which molten metal is filled into the mold under high pressure and high speed, and crystallized and solidified under high pressure to form castings. High pressure and high speed are the main characteristics of die casting. The commonly used pressure is tens of MPa, the filling speed (ingate speed) is about 16-80 m/s, and the time of filling the mold cavity with liquid metal is very short, about 0.01~0.2 s.

The die-casting process in CNC machining is a process in which the three major elements of die-casting machine, die-casting die and alloy are organically combined and comprehensively applied. The process of filling the mold cavity with metal during die casting is the process of unifying the process factors such as pressure, speed, temperature and time. At the same time, these process factors influence, restrict and supplement each other. Only when these factors are correctly selected and adjusted, can the expected results be achieved. Therefore, in the process of CNC machining and die-casting, we should not only pay attention to the process of the casting structure, the progressiveness of the die-casting die, the performance and structure of the die-casting machine, the adaptability of the selection of die-casting alloy and the standardization of the melting process; More attention should be paid to the important role of process parameters such as pressure, temperature and time on casting quality. In the process of die casting, we should pay attention to the effective control of these parameters.

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