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Surface Roughness: investment casting lost wax
Surface roughness (Ra) values achievable by various manufacturing processes — turning, milling, grinding, lapping, etc.
| process | process category | ra max uin (uin) | ra max um (um) | ra min uin (uin) | ra min um (um) | ra typical uin (uin) | ra typical um (um) |
|---|---|---|---|---|---|---|---|
| investment casting lost wax | casting | 248 | 6.3 | 63 | 1.6 | 126 | 3.2 |
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