Edge finish machining, chamfering
Geometric parameters | ||
| Parameters | Size range(mm) | Tolerance(mm) |
Diameter Max. diameter of monocrystal Max. diameter of polycrystal | ≤105 ＞105 Mono- ≤350 Poly- ≤400 | ±0.02 ±0.03 |
| Thickness | ±0.02-±0.05 | |
| Flatness | ±0.02 | |
| Defree of parallelism | ＜φ100 ＞φ100 ＞φ150 | ±0.02 ±0.04 ±0.05 |
| Edge thickness variation(difference) | Standard 0.05 Special ＜0.03 | |
| Verticality | ≤φ200 | ≤0.03 |
| Circular degree | ≤φ105 ＞φ105 | ≤0.01 ≤0.03 |
| Radius of curvature | Standard △Sag＜0.02 Special △Sag＜0.01 | |
| Center thickness | Standard ±0.05 Special ±0.02 | |
| 0.2-1.5 | ||
| Surface finishing | Standard Ra 1.27 Special Ra 0.5 | |
| Edge chips | Chamfering No chamfering | ＜0.3 ≤0.5 |
| Center variation | ≤0.05 | |
