The characteristics of ultrasonic machining in small hole machining process

Ultrasonic machining is a process method that uses the end face of the tool that is vibrated with ultrasonic frequency to process materials through abrasives. When the tool is a thin wire or a thin tube, a small hole can be processed. Ultrasonic machining has the following characteristics: ①It can make small holes in various hard and brittle materials, especially suitable for processing small holes on gems, ceramics, glass and various semiconductor materials. ②It has higher precision and rough surface than EDM The surface has no defects such as residual stress and burns on the surface. The smallest aperture can reach 0.1mm. The machine does not require complex motion and high strength. It has a simple structure and easy operation. However, because the tools are very thin, the manufacture and clamping of the tools are very difficult. , And the speed of processing small holes in metal is very slow, which limits the application of ultrasonic small holes to a certain extent. At present, ultrasonic machining is mainly used for the processing of brittle and hard non-metallic materials. The domestic ultrasonic small hole drilling machine has not been widely used. Only when small holes can be processed by EDM electrolytic machining, the ultrasonic small hole processing technology is selected. Previous post: The characteristics of using electrochemically machined small holes on steel plates