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Comparison of Sigma process performance based on their internal production defect rate solely of additive manufactured products.
| Company | Production Per Year with AM | Production Defect Rate | Defects Per Million | Six Sigma Rating |
|---|---|---|---|---|
| A | 50 | ≈4% | ≈40,000 | ≈3.25 |
| B | 500 | ≈0.4% | ≈4000 | ≈4.14 |
| C | 24,000 | ≈40% | ≈400,000 | ≈1.75 |
