Brief Analysis Of The Development Stage Of Ultra-Precision Machining The Factors Affecting CNC Finishing

Ultra-Precision Machining Technology Is An Important Supporting Technology For Modern High-Tech Warfare, The Foundation For The Development Of Modern High-Tech Industries Science Technology, The Development Direction Of Modern Manufacturing Science. The Development Of Modern Science Technology Is Based On Experiments, Almost All The Required Test Instruments Equipment Require The Support Of Ultra- Precision Machining Technology. One Of The Future Development Trends Of The Manufacturing Industry Is To Move Macro Manufacturing To Micro Manufacturing. Currently, Ultra-Precision Machining Has Entered The Nanoscale, Nanomanufacturing Is A Frontier Topic For Ultra-Precision Machining. Developed Countries In The World Attach Great Importance To It. The Following Isa Brief Analysis Of The Development Stage Of Ultra-Precision Machining  The Factors Affecting CNC Finishing By Huiwen Zhizao .

Current Ultra-Precision Machining Is Based On The Premise Of Changing The Physical Properties Of The Workpiece Material, With The Goal Of Obtaining Extreme Shape Accuracy, Dimensional Accuracy, Surface Roughness, Surface Integrity (No Very Little Surface Damage, Including Defects Such As Microcracks, Residual Stress, Structural Changes).

Factors Affecting Ultra-Precision Machining Accuracy

Taking The Parts Processed By Shenzhen Huiwen Intelligent Manufacturing Technology Co., Ltd. As An Example, The Factors Include: Ultra-Precision Machining Mechanism, Ultra-Precision Machining Technology, Processed Materials, Ultra-Precision Machining Equipment, Ultra-Precision Machining Tools, Ultra-Precision Machining Fixtures, Ultra-Precision Machining Detection Error Compensation Ultra-Precision Machining Environment (Including Constant Temperature, Vibration Isolation, Clean Control, Etc.). Domestic Foreign Scholars Have Been Conducting Systematic Research On These Topics.

Development Stages Of Ultra-Precision Machining

1. The 1950s To The 1980s, The United States Took The Lead In Developing Ultra-Precision Machining Technology Represented By Single-Point Diamond Cutting, Which Was Used For The Machining Of Laser Nuclear Fusion Mirrors, Spherical Aspherical Large Parts In The Fields Of Aerospace, National Defense, Astronomy, Etc.

2. The 1980s To The 1990s, The Application Of Ultra-Precision In The Civilian Industry Began. With The Support Of The Government, Companies Such As Moore Pretech In The United States, Toshiba Hitachi In Japan, Cranfield In Europe Commercialized Ultra-Precision Processing Equipment Began To Use It In The Manufacture Of Civilian Precision Optical Lenses. Ultra-Precision Processing Equipment Is Still Rare Expensive, Is Mainly Customized In The Form Of Special Machines. During This Period, Ultra-Precision Diamond Grinding Technology Grinding Machines That Can Process Hard Metals Hard Brittle Materials Also Appeared, But Their Processing Efficiency Cannot Be Compared With Diamond Lathes.

3. After The 1990s, Civilian Ultra-Precision Machining Technology Gradually Matured. Driven By Industries Such As Automobiles, Energy, Medical Equipment, Information, Optoelectronics Communications, Ultra-Precision Machining Technology Is Widely Used In The Machining Of Parts Such As Aspheric Optical Lenses, Ultra-Precision Molds, Disk Drive Heads, Disk Substrates, Semiconductor Substrates, Etc. With The Gradual Maturity Of Related Technologies Of Ultra-Precision Machining Equipment, Such As Precision Spindle Components, Rolling Guides, Hydrostatic Guides, Micro-Feed Drive Devices, Precision CNC Systems, Laser Precision Detection Systems, Etc., Ultra-Precision Machining Equipment Has Become A Common Production Equipment In The Industry. In Addition, The Accuracy Of The Equipment Is Gradually Approaching The Nanometer Level, The Size Range Of The Workpiece That Can Be Machined Is Also Becoming Larger, The Application Is Becoming More More Extensive. With The Development Of CNC Technology, Ultra-Precision Five-Axis Milling Fly Cutting Technology Have Also Emerged. Complex Parts Such As Non-Axisymmetric Aspheric Surfaces Can Already Be Machined.

Development Of Ultra-Precision Machining In My Country

For A Long Time In The Past, My Country's Import Of Ultra-Precision Machine Tools Abroad Was Severely Restricted Due To The Embargo Restrictions Of Western Countries. However, When My Country's Own CNC Ultra-Precision Machine Tools Were Successfully Developed In 1998, Western Countries Immediately Lifted The Embargo On My Country, My Country Has Now Imported Many Ultra-Precision Machine Tools.

My Country's Beijing Machine Tool Research Institute, Aviation Precision Machinery Research Institute (Aviation 303), Harbin Institute Of Technology, National University Of Defense Technology Other Institutions Are Now Able To Produce Several Types Of Ultra-Precision CNC Diamond Machine Tools.

Beijing Machine Tool Research Institute Is One Of The Main Institutions In China That Conducts Research On Ultra-Precision Machining Technology. It Has Developed Many Different Types Of Ultra-Precision Machine Tools, Components Related High-Precision Testing Instruments, Such As Precision Bearings With An Accuracy Of 0.025μm, JCS-027 Ultra-Precision Lathes, JCS-031 Ultra-Precision Milling Machines, JCS-035 Ultra-Precision Lathes, Ultra-Precision Lathe CNC Systems, Copier Photosensitive Drum Processing Machines, Infrared High-Power Laser Reflectors, Ultra-Precision Vibration-Displacement Micrometers, Etc., Reaching The Domestic Leading International Advanced Level.

The NAM-800 Nano CNC Lathe Is The Latest Generation Of Nano-Level Processing Machine Tools Produced By Beijing Machine Tool Research Institute. It Is A Perfect Combination Of Current CNC Technology, Servo Technology, Mechanical Manufacturing Technology. This Machine Tool Provides A Good Processing Method For The Most Cutting-Edge Scientific Technological Development In My Country.

NAM-800 Nano CNC Lathe

The 303 Institute Of The Ministry Of Aerospace Industry Has Conducted In-Depth Research Product Production In The Areas Of Ultra-Precision Spindles Granite Coordinate Measuring Machines.

Harbin Institute Of Technology Has Conducted Fruitful Research In The Areas Of Diamond Ultra-Precision Cutting, Diamond Tool Crystal Orientation Sharpening, Diamond Micro-Powder Grinding Wheel Electrolytic Online Dressing Technology.

Tsinghua University Has Conducted In-Depth Research In The Areas Of Integrated Circuit Ultra-Precision Processing Equipment, Disk Processing Testing Equipment, Micro-Displacement Workbenches, Ultra-Precision Belt Grinding Polishing, Ultra-Precision Grinding With Diamond Micro-Powder Wheels, Ultra-Precision Cutting Of Non-Circular Sections, Has Launched Corresponding Products.

In Addition, The Changchun Institute Of Optics, Fine Mechanics Physics Of The Chinese Academy Of Sciences, Huazhong University Of Science Technology, Shenyang No. 1 Machine Tool Plant, Chengdu Tool Research Institute, National University Of Defense Technology Others Have Conducted Research In This Field With Remarkable Results.

But In General, There Is Still A Considerable Gap Between My Country Foreign Countries In Terms Of Efficiency, Accuracy, Reliability, Especially Specifications (Large Size) Technical Matching Of Ultra-Precision Machining Machines, The Actual Production Requirements. In Addition, The Precision Machining Of Complex Surfaces Has Always Been A Barrier To The Development Of My Country's Manufacturing Industry. The Development Of The Manufacturing Industry Is Related To The Long-Term Development Of The National Economy, A Lot Of Research Is Still Needed.

Development Of Ultra-Precision Machining Abroad

The Countries That Are In The Leading Position In The World In Ultra-Precision Machining Technology Are The United States, The United Kingdom Japan. The Ultra-Precision Machining Technology In These Countries Is Only Of High Overall Level, But Also Of High Degree Of Commercialization.

In The 1950s, The United States Developed Ultra-Precision Cutting Technology For Diamond Tools, Called "SPDT Technology" (Single Point Dia-Mond Turning) "Micro-Inch Technology" (1 Micro-Inch = 0.025μm), Developed Corresponding Ultra-Precision Machine Tools With Air Bearing Spindles For Processing Laser Nuclear Fusion Reflectors, Tactical Missiles, Large Spherical Aspherical Parts For Manned Spacecraft.

In Terms Of Large Ultra-Precision Machine Tools, The LLL National Laboratory In The United States Successfully Developed Two Large Ultra-Precision Diamond Lathes In 1986: One Is A Horizontal DTM-3 Diamond Lathe With A Processing Diameter Of 2.1m, The Other Is A LODTM Vertical Large Optical Diamond Lathe With A Processing Diameter Of 1.65m. Among Them, The LODTM Vertical Large Optical Diamond Lathe Is Recognized As The World's Most Accurate Ultra-Precision Machine Tool. The United States Later Developed A Large 6-Axis CNC Precision Grinding Machine For Precision Grinding Of Large Optical Reflectors.

I Hope That China's Ultra-Precision Development Will Get Better Better, So Please Look Forward To It. The Above Is An Introduction To The Development Stages Of Ultra-Precision Machining The Factors Affecting CNC Finishing. See You Next Time.