Hard Brittle Parts Grinding
Stable grinding of complex-shape brittle and hard parts with dimensional accuracy < 5μm.
Application
Alumina Ceramic Impeller
+ Profile tolerance < 20 μm;
+ Roughness Ra ＜ 0.8 μm;
+ Dynamic balance ＜ 0.2gmm.
Zirconia Ceramic Watch Case
+ Surface roughness Ra < 0.3 μm;
+ Accuracy of assembly position is within ± 0.0006 in.;
+ Positional accuracy is within ± 0.001 in., CPK > 1.33.
Glass-Ceramics Aspheric Mirror
+ Profile tolerance < 5 μm;
+ Surface roughness Sa < 0.05 μm.
Ceramic Spiral Fit Test Piece
+ Surface roughness Ra < 0.15 μm;
+ Fit clearance of concave and convex workpiece is less than 5 μm.
Graphite Bottle Mouth Electrode
+ The overall accuracy is within ±0.0004 in.;
+ The minimum R Angle is R0.3;
+ Cycle time is less than 40min.
Monocrystalline Silicon Spherical Mirror
+ Difference in vector direction < 0.5 μm;
+ Surface roughness Ra < 0.7 μm.
Graphite Electrode
+ Edges and corners are clear;
+ Tool aspect ratio is 9:1;
+ Dimensional accuracy is within ±0.0004 in., Good surface consistency.
Alumina Ceramic Impeller
+ Profile tolerance < 20 μm;
+ Roughness Ra ＜ 0.8 μm;
+ Dynamic balance ＜ 0.2gmm.
Zirconia Ceramic Watch Case
+ Surface roughness Ra < 0.3 μm;
+ Accuracy of assembly position is within ± 0.0006 in.;
+ Positional accuracy is within ± 0.001 in., CPK > 1.33.
Glass-Ceramics Aspheric Mirror
+ Profile tolerance < 5 μm;
+ Surface roughness Sa < 0.05 μm.
Ceramic Spiral Fit Test Piece
+ Surface roughness Ra < 0.15 μm;
+ Fit clearance of concave and convex workpiece is less than 5 μm.
Graphite Bottle Mouth Electrode
+ The overall accuracy is within ±0.0004 in.;
+ The minimum R Angle is R0.3;
+ Cycle time is less than 40min.
Monocrystalline Silicon Spherical Mirror
+ Difference in vector direction < 0.5 μm;
+ Surface roughness Ra < 0.7 μm.
Graphite Electrode
+ Edges and corners are clear;
+ Tool aspect ratio is 9:1;
+ Dimensional accuracy is within ±0.0004 in., Good surface consistency.
Select the Appropriate Machine Tool According to the Shape and the Size of Parts
Cracks are easy to occur on the surface of hard brittle parts during machining, which will lead to large dimensional error, poor surface effect. The grinding type JINGDIAO 5-axis high speed machining centers can machine hard and brittle parts with dimensional accuracy of 5μm due to high precision, good structural protection, and are equipped with accessories for grinding.
GRMGA200
JINGDIAO 5-Axis High-Speed Machining Center
Key Configuration
JD105-32-HSK32 High-Speed Precision Spindle
Low torque and high speed, suitable for finishing.
Grinding Protection System Protects Key Parts of Machine Tool
Prevent the grinding chips from entering the inner of machine tool, reduce the wear of the rail and screw, and ensure the accuracy of the machine tool.
High Precision Grinding Filtration System
Adopting 4-stage filtration, and the filtration accuracy is 25μm.
The Grinding Wheel Trimming System Helps Maintain the Grinding Capability
After working for a long time, the grinding wheel will be clogged or abrasive passivated, which will lead to the decrease of grinding capability. In order to improve the grinding capability, the grinding wheel trimming system can trim on-line.
The Automatic Measuring Device of Grinding Wheel Diameter Replaces the Manual Tool Set and Obtains the Actual Diameter of the Grinding Wheel
The diameter of the grinding wheel needs to be measured for the first use, and using this device can reduce the probability of overcutting and scratching the side wall of hole. After trimmed, using this device can reduce the manual measurement error.
JD105-32-HSK32 High-Speed Precision Spindle
Low torque and high speed, suitable for finishing
Grinding Protection System Protects Key Parts of Machine Tool
Prevent the grinding chips from entering the inner of machine tool, reduce the wear of the rail and screw, and ensure the accuracy of the machine tool.
High Precision Grinding Filtration System
Adopting 4-stage filtration, and the filtration accuracy is 25μm.
The Grinding Wheel Trimming System Helps Maintain the Grinding Capability
After working for a long time, the grinding wheel will be clogged or abrasive passivated, which will lead to the decrease of grinding capability. In order to improve the grinding capability, the grinding wheel trimming system can trim on-line.
The Automatic Measuring Device of Grinding Wheel Diameter Replaces the Manual Tool Set and Obtains the Actual Diameter of the Grinding Wheel
The diameter of the grinding wheel needs to be measured for the first use, and using this device can reduce the probability of overcutting and scratching the side wall of hole. After trimmed, using this device can reduce the manual measurement error.
JINGDIAO Proven Precision Machining Solutions
Grinding wheels are used in hard and brittle parts grinding. The actual size of grinding wheel and the wear generated during machining are not easy to quantify. However it will directly affect the precision of the parts.
JINGDIAO solution for this kind of parts can achieve dimensional accuracy less than 5 μm. This is because JINGDIAO high-speed machining centers are equipped with on-machine inspection system, which can automatically measure the actual size and the wear amount of the grinding wheel. This process doesn’t need manual operation and can effectively ensure the continuity of machining.
Contact Us right now to obtain customized solutions, and realize 5μm grinding.
