Fagor 8055i FL EN - Page 130

·130·
Operating manual
CNC 8055
CNC 8055i
3.
WORKING WITH OPERATIONS OR CYCLES
·TC· OPTION
SOFT: V02.2X
Threading cycle
Fine pitch American thread: UNF (NF,SAE)
The threads must be defined in mm or inches. For example, to define an American thread with a
1/4 pitch, enter 6.3500 mm or 0.2500 inches.
The CNC calculates the pitch and the depth with the formulae:
Pitch in mm = 25.4 / number of edges
Pitch in inches = 1 / number of edges
Depth in internal threads = 0.5413 x Pitch
Depth in external threads = 0.6134 x Pitch
Thread Step Depth (mm)
(mm) (inches) Edges (mm) (inches) Internal External
0.0600 1.5240 0.0600 80 0.3175 0.0125 0.1719 0.1948
0.0730 1.8542 0.0730 72 0.3528 0.0139 0.1910 0.2164
0.0860 2.1844 0.0860 64 0.3969 0.0156 0.2148 0.2435
0.0990 2.5146 0.0990 56 0.4536 0.0179 0.2455 0.2782
0.1120 2.8448 0.1120 48 0.5292 0.0208 0.2865 0.3246
0.1250 3.1750 0.1250 44 0.5773 0.0227 0.3125 0.3541
0.1380 3.5052 0.1380 40 0.6350 0.0250 0.3437 0.3895
0.1640 4.1656 0.1640 36 0.7056 0.0278 0.3819 0.4328
0.1900 4.8260 0.1900 32 0.7937 0.0312 0.4296 0.4869
19/88 5.4864 0.2160 28 0.9071 0.0357 0.4910 0.5564
1/4 6.3500 0.2500 28 0.9071 0.0357 0.4910 0.5564
5/16 7.9375 0.3125 24 1.0583 0.0417 0.5729 0.6492
3/8 9.5250 0.3750 24 1.0583 0.0417 0.5729 0.6492
7/16 11.1125 0.4375 20 1.2700 0.0500 0.6875 0.7790
1/2 12.7000 0.5000 20 1.2700 0.0500 0.6875 0.7790
9/16 14.2875 0.5625 18 1.4111 0.0556 0.7638 0.8656
5/8 15.8750 0.6250 18 1.4111 0.0556 0.7638 0.8656
3/4 19.0500 0.7500 16 1.5875 0.0625 0.8593 0.9738
7/8 22.2250 0.8750 14 1.8143 0.0714 0.9821 1.1129
1 25.4000 1.0000 12 2.1167 0.0833 1.1458 1.2984
1 1/8 28.5750 1.1250 12 2.1167 0.0833 1.1458 1.2984
1 1/4 31.7500 1.2500 12 2.1167 0.0833 1.1458 1.2984
1 1/2 38.1000 1.5000 12 2.1167 0.0833 1.1458 1.2984