Reseach On Ultrasonic Vibration Turning

With the development of the science and technology, precision and super-precision machining technologies have an important increasing position. For some workpieces of specific material and complex shape, it is difficult to use the conventional machining method, so non-traditional machining is developed rapidly. One of them is ultrasonic machining technology. It is indicated that ultrasonic technology has provided an huge help to improve the quality of product, reduce the costs of production, increase efficiency and so on. Now it is already entered into national defense and economy, science and technology, people's life and other domains.Secondly, ultrasonic vibration cutting systems are studied theoretically. Net cutting time ratio r is defined, and relationship between r and cutting force is studied. The analysis indicates that the force increases as the r increases. With the software MARC, the temperature field variation rule of vibration cutting process is studied. The results of simulations show that heat dissipation when the tool comes off the workpiece is the mian reseon.Finally, the cutting experiment with and without ultrasonic vibration is made. The superior ranges of cutting parameters are recommended. The cutting speed and ultrasonic amplitude between cutting force is verified. The results of experiments show that the cutting force and surface roughness are lower with ultrasonic vibration than without ultrasonic vibration.