Today, China's bending machine processing technology, began to sprout from the Bronze Age, and gradually formed and developed. From the Shang Dynasty to the Spring and Autumn period has been well-developed bronze smelting industry faces a variety of bronze tools, such as: bronze knives, bronze filing, bronze saws and so on. Oracle also has relics and records show that during this period the production of bronze tools and live instruments, in the manufacturing process have to make by cutting or grinding. Smelting technology in China than in Western Europe a thousand years earlier. Carburizing, quenching, and the invention of steel-making technology, for the manufacture of hard, sharp tool provides convenient conditions. The appearance of iron tools, indicating that the metal cutting into a new stage. Recorded that as early as three thousand years ago in the Shang Dynasty Jade carving tools have been rotated, which is the predecessor of the metal cutting machine tools. No. 70 tomb unearthed in Hebei, the city is five baht money has been turned on its cylindrical traces of knife even flowers, cutting vibration (vertical vibration conveyor) corrugated clear, oval is very small. Money may be worn five baht and then clamping the square shaft in the wood lathe, hand-holding cutting tools.
Eighth century, when China will have a metal cutting lathe. The Ming Dynasty, the handicraft industry has been greatly developed, a variety of cutting methods, with a smaller division of labor. Such as: turning, milling, drilling, grinding and so on. From the Beijing Ancient Observatory astronomical instruments can be seen on the time used and the fifties and sixties similar processing methods. This explains, there was high precision grinding, turning, milling, drilling and more. Its power is the animal and water.
Later on, as government corruption and foreign invasion of our country's scientific and technological stagnation, metal working also in a backward state. Before the liberation, our industry has been lagging far behind, did not have their own machine tools, machine tools can use the magnesium fire board, tool manufacturing. Even such high-speed steel tool material, twist like an ordinary tools can create.
After the liberation, our machine has also been considerable development. Machine and tool manufacturing are from small to large. Seventies and eighties, further development of tool materials, carbide and high speed steel specifications and varieties continue to increase. Such as: coated cemented carbide, cubic boron carbide, ceramics and so on. NC to the eighties, digital equipment also began to develop again. At that time due to electronic equipment, computer, transmission effects, there is not much room for development. As electronic equipment, computer, transmission rate of rapid development, numerical control, digital display devices are also rapidly developing.
Today, China's machine tool manufacturer has basically matured, especially in the general machine tools. Accurate in terms of machine is the carrier of advanced manufacturing technology, machinery and product quality, update speed, adaptability, efficiency and a considerable extent depends on the machine. China is now the demand for machine tools will be a mid-range of CNC machine tools, machining centers and special machines based. Other machine is relatively much less. Moreover, China's sophisticated CNC machine tools and manufacture of automated production lines can not be compared with the world strong opponents.
