Views: 0 Author: Site Editor Publish Time: 2025-05-14 Origin: Site
China has made remarkable progress in the field of mechanical parts processing technology in recent years, particularly in the top-end equipment manufacturing, intelligent transformation, and the localization of key technology. The following are the trends and significant breakthroughs at present:
1. Domestic 5-Axis CNC Machine Tools:
Domestically produced 5-axis machining centers, breaking foreign monopolies in aerospace engine blades, nuclear equipment, and other high-precision complex part manufacturing.
The intelligent numerical control system supports AI algorithms to optimize the mechanical parts processing path and achieve nanoscale precision control.
Linear motor and electric spindle technology: Domestic enterprises have developed high-speed electric spindles (with a rotational speed of up to 60,000 revolutions per minute) and high-precision linear motors to improve the dynamic response and machining efficiency.
2. Ultra-Precision & Micro-Nano Manufacturing:
Harbin Institute of Technology developed ultra-precision turning machines with sub-micron accuracy, used for infrared optics and semiconductor molds.
A team from Tsinghua University has achieved the processing of micro-holes with a diameter of less than 1 micron (applied to MEMS sensors) by using femtosecond laser processing technology.
Semiconductor Key Components:
The positioning accuracy of the lithography machine workpiece table of Shanghai Microelectronics (SMEE) reaches the nanometer level, promoting the development of domestic chip manufacturing equipment.
3. Advanced Materials & Coating Technologies:
The hard alloy coated cutting tool (TiAlN+ nano-multi-layer coating) developed by Xiamen Tungsten Industry has a service life twice as long as that of traditional cutting tools and is used for high-speed cutting of titanium alloys.
The BPM series of plastic mold steel of Baosteel Special Steel (benchmarked against Swedish ASSAB 718) has been localized, reducing the cost by 40%.
4. Green Manufacturing & Energy-Saving Technologies
Cryogenic & Dry Machining:
The liquid nitrogen low-temperature cutting technology of Dalian University of Technology is applied to difficult-to-machine materials (such as nickel-based alloys) to reduce the contamination of cutting fluid.
Dry gear hobbing machines eliminate the use of cutting oil, reducing energy consumption by 30%.
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