Development and application of precision machining technology

Development and application of precision machining technology

Precision machining technology is an advanced manufacturing technology developed to meet the needs of modern high technology, and it is the basis of the implementation of other high and new technologies.

It comprehensive application of the new achievements of the development of mechanical technology and modern electronics, sensing technology, optical and computer high and new technology, is the basic technology in the field of high-tech, in the national defense science and technology modernization and national economic construction plays a vital role, at the same time as the basis of modern high-tech technology and an important component, promote the semiconductor technology, photoelectric technology, material technology and other technology cross development progress.

Processing accuracy of 1 micron machining method, precision machining is under strictly controlled environmental conditions, using precision machine tools and precision measuring tools and meters to achieve.

The machining accuracy of up to and more than 0.1 micron is called ultra-precision machining.

In the aerospace industry, precision machining is mainly used for processing precision mechanical parts in aircraft control equipment, such as precision coordination parts in hydraulic and pneumatic servo mechanism, gyroscope frame, shell, air floating, liquid floating bearing components and floats, etc.

The structure of aircraft precision parts is complex, small stiffness, requires high precision, and the proportion of difficult processing materials is large.

The process effect of precision machining is: the geometry and mutual position accuracy of ① parts reach micron or corner second level; the boundary or characteristic size tolerance of ② parts is below micron; the microscopic ness of the surface of ③ parts (average height difference) is less than 0.1 micron; ④ mutual parts can meet the requirements of coordination force; ⑤ parts can also meet the requirements of accurate mechanical or other physical characteristics, such as the torsion stiffness of the float gyroscope torsion rod and the stiffness coefficient of flexible components.

In recent years, automobile, mold parts, metal processing mostly use CNC machine tools as the center of the production form, hole processing, also mostly use processing center, CNC processing machine tools and other advanced equipment, high-speed, high-precision drilling processing has been put on the agenda.

No matter which field of precision machining, the realization of high precision and high speed is an important means of competition to obtain user orders.

Die casting industry