In many industrial and daily products, molds are an indispensable part. Many industrial products, including daily necessities, are completed by molds. In modern mass production, without high-level molds, there will be no high-quality products. It also plays an important role in improving production efficiency and reducing production costs for enterprises. According to the latest foreign statistical analysis, 75% of the rough machining of metal parts, 50% of finishing machining and 90% of plastic parts are processed by molds. Therefore, the mold industry is also known as the "crown industry". Today, mold making has become an important part of advanced manufacturing technology.

　　Plastic mold is an important field in the mold industry. The emergence of high-speed processing technology has opened up a new road for plastic mold manufacturing technology. It is an inevitable trend to speed up the development of molds and improve the quality of mold manufacturing to replace electrical machining with high-speed machining as much as possible.

　　The main advantages of high speed machining are:

　　Good product quality - high-speed cutting processes parts at a cutting speed that is about 10 times higher than the conventional cutting speed. The residual material of the blank is cut away from the workpiece in an instant before it can be fully deformed, and the residual stress on the surface of the workpiece is very small; Most of the heat (more than 95%) generated in the cutting process is quickly taken away by the chips, and the thermal deformation of the workpiece is small; in the process of high-speed machining, the machine tool spindle runs at a very high speed (10000"80000 r/min), exciting vibration The frequency is far away from the natural frequency range of the "machine tool-tool-workpiece" system, and the machining process of the parts is smooth and without impact. Therefore, the machining accuracy of the parts is high, the surface quality is good, and the roughness can reach Ra 0.6μm or more. After high-speed milling The surface quality of the cavity can reach the level of grinding, so many subsequent finishing processes can often be omitted.

　　High production efficiency - machining the mold with a high-speed machining center or a high-speed milling machine can complete the roughing and finishing of the cavity and the machining of other parts of the mold part in one clamping of the workpiece, which is the so-called "One Pass Machining" technology. ), the cutting speed is very high, and the efficiency of the machining process itself is several times higher than that of electrical machining. In addition, it does not need to be an electrode, and often does not require subsequent manual grinding and polishing, and it is easy to automate the processing process. Therefore, the application of high-speed machining technology has greatly improved the development speed of molds.

　　Since the development of my country's plastic mold industry, there has been rapid progress. The design and manufacturing technology of plastic molds, CAD and other related technologies have been deeply studied in my country. However, under the circumstance that the quality of domestic molds is uneven due to the different process conditions used by plastic mold manufacturers, modern enterprises need to increase the research on plastic molds. Plastic molds play a huge role in machinery, electronics, automobiles, information, aviation, aerospace, light industry, military industry, transportation, building materials, medical care, biology, energy and other industries.