CNC technology originated from the needs of the aviation industry, and was proposed by a US helicopter company in the late 1940s.
The initial idea of CNC machine tools, in 1952, the United States Institute of Technology developed a three-axis CNC milling machine. In the mid-1950s, such CNC milling machines were used to machine aircraft parts. In the 1960s, CNC systems and programming were increasingly mature and perfect. CNC machine tools have been used in various industrial sectors, but the aerospace industry has always been the largest user of CNC machine tools. Some large aviation plants are equipped with hundreds of CNC machine tools, of which cutting machines are the mainstay. CNC machining parts include aircraft and rocket integral siding, girders, skins, bulkheads, propellers, and aircraft engine casings, shafts, discs, blade mold cavities, and special cavity surfaces for liquid rocket engine combustion chambers. . The initial development of CNC machine tools is based on continuous trajectory CNC machine tools, continuous trajectory control.
Continuous trajectory control, also known as contour control, requires the tool to move relative to the part in a defined trajectory. In the future, we will vigorously develop point-controlled CNC machine tools. Point control means that the tool moves from one point to another, as long as it finally reaches the target accurately regardless of the movement route.
