How to achieve mirror grinding with grinding wheel
Achieving mirror polishing effect is not difficult, mainly using high-precision resin bond diamond grinding wheel.
Requirement of machines for mirror polishing:
High precision, rigidity and vibration reduction measures; the rotation precision of the resin grinding wheel spindle is higher than 1mm;
The amplitude of the grinding wheel frame relative to the table is less than 1 mm; the lateral feeding mechanism can accurately finely move;
Case study:
| Mirror
Grinding parameters |
speed of the grinding wheel | 15 ~ 20m/s |
| Work piece speed | ≤50 ~ 100mm/min | |
| Feed rate | 3 ~ 5mm | |
| cooling | Water and oil | |
| Horizontal feed depth of 3 ~ 5mm, then make no feed grinding 20 ~ 30 times. | ||
| Dressing parameters | Dressing tools | Single crystal diamond point dress tools |
| Dressing speed | 6 ~ 10mm/min | |
| horizontal feeding | 2 ~ 4 times | |
| cutting depth | 2 ~ 3mm each time | |
| Each time the depth of cut is 2 to 3 mm, and no feed light is repaired once. | ||
Then use resin bond grinding wheel grit W14 ~ W5 after fine dressing, for mirror polishing under proper grinding pressure. After a certain time of friction polishing, finally reach surface roughness ≤Ra 0.01mm.
