The further development of grinding machining centers leads to multi-functional composite machining centers. These centers can perform not only grinding but also cutting, laser machining, and electrical discharge machining. Machine tool manufacturers combine these various processing capabilities to develop a wide range of new machine tools, which are frequently seen at the Jimtoof International Machine Tool Exhibition in Japan. (Online wheel dressing technology)
For example, Professor Takuya Senba of Fukuoka Institute of Technology developed a hybrid machining center that combines laser processing and grinding capabilities. Laser processing is used for roughing, while grinding is employed for finishing. The machine tool is internally equipped with a laser focusing system for machining and an optical system for observing the machined surface. Furthermore, the oxygen concentration of the auxiliary gas can be adjusted by incorporating nitrogen into the compressed air. Grinding is performed using a 3000# electroplated grinding wheel, while dressing is done using an 8000# electrically charged dressing tool. This system can complete the hybrid machining of smooth surfaces below 80nm on glassy carbon workpieces in a short time.
Makino Precision Machinery has developed the CNJ2-E composite machining center, which integrates electrical discharge machining (EDM) and grinding. It utilizes EDM for high-efficiency roughing and then grinds the material to achieve the final shape.
Grinding machining centers and composite machining tools both use workpiece clamping for machining in one go, thus minimizing the impact of installation errors. They can effectively meet the requirements of high precision, high energy efficiency, and space saving, and their development prospects are very promising.
The principle of laser cutting
Laser cutting uses electron discharge as the energy source, a mixture of gases such as He, N2, and CO2 as the excitation medium, and a laser beam is generated by focusing the beam using a set of mirrors, thereby cutting the material.
The laser cutting process: Under the excitation and drive of the CNC program, a laser generator produces a specific mode and type of laser, which is transmitted to the cutting head through the optical path system and focused on the surface of the workpiece to melt the metal; at the same time, the nozzle sprays auxiliary gas from a direction parallel to the beam to blow away the molten slag; driven by a programmable servo motor, the cutting head moves along a predetermined path, thereby cutting workpieces of various shapes.
Wuxi Yiji Grinding Machine Manufacturing Co., Ltd. (hereinafter referred to as Wuxi Yiji) is one of the key grinding machine manufacturers in China. It mainly engages in the research, development, manufacturing and sales of centerless grinding machines, CNC centerless grinding machines, CNC internal grinding machines, CNC external grinding machines, high-precision centerless grinding machines, CNC universal external grinding machines and CNC universal internal grinding machines.
