Precision machining technology

Precision machining technology is an advanced manufacturing technology developed to meet the needs of modern high technology and is the basis for the implementation of other high and new technologies. The following is a detailed introduction to precision machining technology:

Definition and classification
Precision machining technology is a process of changing the dimensions or properties of the workpiece with high precision. According to the temperature state of the workpiece to be processed, it can be divided into cold processing and hot processing. Cold processing is usually carried out at room temperature and does not cause chemical or phase changes in the workpiece, mainly including cutting and pressure processing. Hot processing is carried out at a state higher than or lower than normal temperature, which will cause chemical or phase changes in the workpiece, common heat treatment, forging, casting and welding.

Second, the main process and technical characteristics
Main technology
Fine turning: Mainly used for machining precision mechanical parts in aircraft control equipment, such as hydraulic and pneumatic servomechanism, to obtain 1 micron accuracy and average height difference of less than 0.2 micron surface roughness.
Fine boring: similar to fine turning, but pay more attention to the machining accuracy and surface quality of the hole.
Precision milling: Used to process aluminum or beryllium alloy structural parts with complex shapes, relying on the accuracy of the guide rail and spindle of the machine tool to obtain high mutual position accuracy.
Fine grinding and grinding: precision machining is achieved through precision machine tools and precision measuring instruments, which can be used to reduce surface roughness and improve surface quality.
Technical characteristics
High precision: Machining accuracy up to 10.1 microns, surface roughness up to Ra0.10.01 microns.
High efficiency: Improve the processing efficiency and shorten the production cycle by optimizing the processing parameters and technology.
High stability: Advanced machine tools and testing equipment are used to ensure the stability and consistency of the processing process.
High adaptability: It can process a variety of materials, including metal, non-metal and composite materials.
3. Application fields and development trends
Application field
Aerospace: Used for machining precision mechanical parts in aircraft control equipment.
Defense technology: For the manufacture of high-precision weapon systems and equipment.
Electronic information: used to manufacture microstructures such as integrated circuits and semiconductor devices.
Medical devices: Used to manufacture high-precision medical devices and components.
Development trend
Higher accuracy: With the advancement of technology, the precision of precision machining technology will continue to improve, and the development of nanoscale processing technology.
Higher efficiency: Improve processing efficiency and reduce production costs by optimizing processes and parameters.
Intelligence and automation: Combining intelligent manufacturing technology to realize intelligent and automatic control of processing process.
Environmental protection and energy saving: Focus on the application of environmental protection and energy saving technologies to reduce energy consumption and waste emissions during processing.
Fourth, technological innovation and fine management
In the field of precision machining, technological innovation is the basis for high-precision machining. Enterprises should regularly upgrade processing equipment, the introduction of high-precision, high-stability machine tools and testing equipment. At the same time, fine management is also the key to improve processing accuracy and efficiency. Enterprises should develop detailed production plans and technological processes, and clarify the operating norms and standards of each link. Through the introduction of modern management tools such as ERP, the real-time monitoring and data analysis of the production process are realized, and the deviations in production are discovered and corrected in time.