1. Straight corrugations are produced on the workpiece surface of internal grinder. The lengthening shaft is long and thin with poor rigidity. The characteristics and accuracy change law of the workpiece shall be mastered and the grinding wheel shall be trimmed in time.
2. Straight corrugations are produced on the workpiece surface of internal grinder. If the grinding wheel is not sharp, master the characteristics and accuracy change law of the workpiece and trim the grinding wheel in time.
3. Straight corrugations are produced on the workpiece surface of internal grinder. If the grinding wheel diameter is too large to cause vibration, the characteristics and accuracy change law of the workpiece shall be mastered and the grinding wheel shall be trimmed in time.
4. Straight corrugations are produced on the workpiece surface of internal grinder. Vibration is caused by the excessive connection length between the grinding wheel and the workpiece. Trim the grinding wheel to reduce the contact surface, and select the appropriate grinding wheel.
5. The workpiece surface of internal grinder produces spiral shape. If the contact between the grinding wheel and the workpiece is poor, the characteristics and accuracy change law of the workpiece shall be mastered and the grinding wheel shall be trimmed in time.
6. The workpiece surface of internal grinder is roughened and scratched. If the contact area between the grinding wheel and the workpiece is too large, trim the grinding wheel to reduce the contact surface, and select the appropriate grinding wheel.
7. The workpiece of internal grinder is tapered. If the hardness of the grinding wheel is too low, the grinding wheel shall be correctly selected according to the characteristics of the workpiece and the grinding requirements and the characteristics of the grinding tool and its selection rules.
8. The workpiece of internal grinder is tapered. If the grinding wheel is not sharp, master the characteristics and accuracy change law of the workpiece and trim the grinding wheel in time.
9. Burn on the surface of internal grinder parts. If the wheel diameter is too large, reduce the wheel diameter.
10. Internal grinder workpiece surface burns. If the grinding wheel is blunt and not sharp, the characteristics and accuracy change law of the workpiece shall be mastered and the grinding wheel shall be trimmed in time.
11. The workpiece of internal grinder is horn shaped. When grinding a through hole with a countersunk groove in the middle, the width of the grinding wheel is not enough, which causes the notch to be horn shaped and increases the width of the grinding wheel.
12. The workpiece of internal grinder is horn shaped. When grinding the short shoulder hole, the grinding wheel crosses the workpiece too much, resulting in horn shape. Select a narrower grinding wheel or reduce the diameter of the part beyond the grinding wheel.
13. The workpiece of internal grinder is horn shaped. When grinding the inner hole with keyway, the width of the grinding wheel is too wide, which will cause the corner of the groove edge. Appropriately reduce the width of the grinding wheel or insert a cushion (bakelite or metal) in the workpiece groove.
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