Test Chart for Shaping Machines
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Test Chart for Shaping Machines
Test Chart for Shaping Machines -
| Test to applied | Figures | Permissible Error |
Table flat and level in both directions Column and table slide: |
 |
mm 0.04 per 1,000 mm 0.02 per 300 mm |
| Front bearing surface of table slide flat or level | 0.03 per 1,000 mm | |
| Upper guide on table slide square with column ways |  |
0.03 per 300 mm |
Work table: |
 |
0.02 per 300 mm |
| Incline of table in its transverse movement | ± 0.015 per 300 mm | |
| Ditto, in its vertical movement | ± 0.02 per 300 mm | |
| Upper surface of table parallel with its transverse movement |  |
0.01 per 300 mm |
| Movement of ram parallel with work table (table rising at front) | 5 a | 0 to 0.015 per 300 mm |
Movement of ram parallel with T-slots |
5 b | 0.015 per 300 mm |
| Movement of ram parallel with side clamping surfaces |  |
0.02 per 300 mm |
| Movement of ram parallel with side T-slots (slots rising at front end) |  |
mm 0 to 0.02 per 300 mm |
| Side clamping surfaces of table parallel with its vertical adjustment |  |
0.02 per 300 mm |
| Guide for table support parallel with transverse movement of table | |
0.02 per 300 mm |
Table saddle: |
 |
0 to 0.02 per 300 mm |
T-slots of table saddle parallel with its transverse movement |
 |
0.02 per 300 mm |
Working accuracy of machine Material: steel of 35 to 40 tons per sq. in. or cast-iron or 12 to 15tons per sq. in. (1) Finishing surface A The finished surfaces are parallel with each other measured by micrometer of 0.002 mm (0.0001 in.) accuracy |
0.02 per 300 mm |
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