Performance Test for Lathe
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Performance Test for Lathe
Performance Test for Lathe -
| Test to be applied | Dimensions of piece | Gauge and methods | Tolerances |
| (a) Round turning (chucking) | Dia = 1/2 centre height Length = centre height |
Made on 2 bands of cylinder, 25 mm distant from each end and 25 mm wide. Standard micro-meters 0.0025 mm | 0.01 mm |
| (b) Parallel turning (chucking) | - | - | 0.03 mm per 300 mm |
| (c) Parallel turning between centres | Dia = 1/2 length Length from 1/2 to 1 distance between centres |
Standard tools | 0.02 mm in any length |
| (d) Facing (concave only) | Dia = centre height Length about centre height |
Standard tools | 0.02 mm per 300 mm diameter |
| (e) Screwing | Dia = 25 mm Length of thread 50 mm Length of thread 300 mm |
Standard tools | ± 0.02 mm total pitch error. ± 0.05 mm |
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