Which parts are suitable for precision machining?

We Know That Precision Machining Has Very High Requirements For Accuracy. Precision Machining Has Good Rigidity, High Manufacturing Accuracy, Accurate Tool Setting , So It Can Process Parts With Very High Precision Requirements. So Which Parts Are Suitable For Precision Machining? Let Our Engineers Introduce To You:

First Of All, Compared With Ordinary Lathes, CNC Lathes Have A Constant Linear Speed Cutting Function. Whether It Is The End Face The Outer Circle Of Different Diameters, The Same Linear Speed Can Be Used For Processing, Which Ensures That The Surface Roughness Value Is Consistent Relatively Small. Ordinary Lathes Have A Constant Speed, The Cutting Speed Is Different For Different Diameters. When The Material Of The Workpiece Tool, The Finishing Allowance The Tool Angle Are Constant, The Surface Roughness Depends On The Cutting Speed Feed Speed.

When Machining Surfaces With Different Surface Roughness, A Smaller Feed Speed Is Used For The Surface With Smaller Roughness, A Larger Feed Speed Is Used For The Surface With Larger Roughness. The Variability Is Very Good, Which Is Difficult To Achieve On Ordinary Lathes. For Parts With Complex Contours, Any Plane Curve Can Be Approximated By A Straight Line An Arc. CNC Precision Machining Has An Arc Interpolation Function Can Process Parts With Various Complex Contours. The Use Of CNC Precision Machining Requires The Operator's Careful Use.

CNC Precision Machining Mainly Includes Fine Turning, Fine Boring, Fine Milling, Fine Grinding Grinding Processes:

(1) Precision Turning Precision Boring: Most Precision Light Alloy (Aluminum  Magnesium Alloy , Etc.) Parts In Aircraft Are Processed By This Method. Generally, Natural Single Crystal Diamond Tools Are Used, The Blade Arc Radius Is Less Than 0.1 Micron. Processing On A High-Precision Lathe Can Achieve An Accuracy Of 1 Micron A Surface Unevenness With An Average Height Difference Of Less Than 0.2 Microns. The Coordinate Accuracy Can Reach ±2 Microns.

(2) Precision Milling: It Is Used To Process Aluminum Beryllium Alloy Structural Parts With Complex Shapes. It Relies On The Accuracy Of The Machine Tool's Guide Rails Spindle To Obtain A High Relative Position Accuracy. Using A Carefully Ground Diamond Cutter Head For High-Speed Milling Can Obtain An Accurate Mirror Surface.

(3) Fine Grinding: Used For Machining Shaft Hole Parts. Most Of These Parts Are Made Of Hardened Steel Have High Hardness. Most High-Precision Grinder Spindles Use Static Dynamic Liquid Bearings To Ensure High Stability. The Ultimate Grinding Accuracy Is Only Affected By The Rigidity Of The Machine Tool Spindle Bed, But Also By The Selection Balance Of The Grinding Wheel, The Machining Accuracy Of The Workpiece Center Hole, Other Factors. Fine Grinding Can Achieve A Dimensional Accuracy Of 1 Micron A Non-Roundness Of 0.5 Microns.

(4) Grinding: The Principle Of Mutual Grinding Of Mating Parts Is Used To Selectively Process Irregular Raised Parts On The Processed Surface. The Diameter Of Abrasive Particles, Cutting Force Cutting Heat Can Be Precisely Controlled, So It Is The Most Accurate Processing Method In Precision Processing Technology. The Hydraulic Pneumatic Mating Parts In The Precision Servo Parts Of Aircraft The Bearing Parts Of Dynamic Pressure Gyro Motors Are All Processed By This Method To Achieve An Accuracy Of 0.1 Even 0.01 Microns A Microscopic Roughness Of 0.005 Microns.