Sound waves with frequencies above 20 kHz are called ultrasonic waves. Ultrasonic machining is a special processing method which uses ultrasonic vibration to add high frequency vibration energy to machining process.
During the process, the tool is subjected to ultrasonic vibration, and the workpiece surface is hammered continuously with high frequency vibration of more than 20000 times per second, which makes the workpiece break gradually. The tool is gradually penetrated into the material, which makes the workpiece form.
Ultrasonic machining
Characteristics and advantages of ultrasonic machining
The finish and precision of the processing are good. Because ultrasonic machining is based on the instantaneous local impact of abrasive, the tool has little macro cutting force and small cutting heat, which will not cause deformation and surface burn, so as to achieve better finish and processing accuracy. It is also suitable for machining thin-walled, narrow seam and low rigidity parts which can not bear large mechanical stress.
It is suitable for hard brittle and hard to process materials. The ultimate cutting force is the primary condition to ensure the ultrasonic grinding and drilling process of hard and brittle materials. Compared with ordinary machining, the machining method and principle of ultrasonic machining can greatly reduce the cutting force, cutting heat and tool load on the surface of the workpiece, and can significantly improve the processing efficiency of hard materials, and provide high efficiency for the processing of hard brittle materials such as glass, ceramics, sapphire and silicon carbide High quality solutions.
Easy to process and polish tiny holes. Compared with the ordinary machining method of micro holes, it is not easy to remove chips and low tool strength, and the ultrasonic machining frequency is high. It can remove materials at more than 20000 times per second, reduce cutting force, reduce tool damage, ensure machining efficiency and improve the surface quality.
There is no need to change the machine structure. With the development of ultrasonic machining technology, the ultrasonic system can be designed in miniaturization and modularization. It is suitable for different types of machining machines. It has low threshold and can be deployed rapidly.
The ultrasonic machining system developed by superior super independently developed by domestic ultrasonic technology and its product supplier does not need to change the machine structure. Only the spindle or handle need to be replaced, it can communicate seamlessly with the original CNC machine tool, and help the traditional machine tool upgrade and realize ultrasonic processing.
It can be combined with other processing methods to form composite processing. It can be combined with EDM, electrolysis, cutting and grinding to form composite machining. The composite machining method can improve the condition of electrical or cutting, and improve the efficiency and quality of machining.
Application of ultrasonic machining
Ultrasonic machining has gradually become an important means to improve the efficiency of machining. From the application industry, ultrasonic processing is mainly used in 3C, aerospace, national defense and military industry, 5g new materials, new energy and other industries.
For example:
3C industry, with the improvement of the quality requirements of 3C products, has promoted the development of 3C products such as mobile phones towards high integration and high precision. However, the product is updated quickly, the structure is becoming smaller and the difficulty of upgrading processing accuracy and surface quality is increasing. Ultrasonic processing can help to create precision production and improve efficiency.
Aerospace industry, with high quality requirements, important materials such as carbon carbon composite and carbon fiber have high strength, low density, high temperature resistance and corrosion resistance, but its high strength, high elastic modulus and wear resistance are difficult to process, and are not easy to cut, easy to collapse and tool wear fast. Ultrasonic machining can reduce the load of the tool, improve the burr phenomenon, and realize the machining quality and efficiency.
Carbon carbon composite materials with excellent ultrasonic processing
From the material point of view, ultrasonic processing has obvious effect on solving the difficult problems of hard and brittle materials processing. At present, it is mainly used in the drilling, slotting, deburring of large-scale parts and polishing of die surface of hard brittle materials such as glass, ceramics, sapphire and silicon carbide.
With the improvement of the quality and demand of new materials, hard to process materials, hard working structures and surfaces, ultrasonic machining will have a wider application prospect.