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3 - Fagor Automation

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Cicli fissi (modello ·T·)<br />

5.7 Filettatura Whitworth gas — BSP<br />

Le filettature vanno definite in mm o pollici. Ad esempio, per definire una filettatura Whitworth<br />

di passo 1/8 occorre immettere il valore 3,175 mm o 0,125 pollici.<br />

Il CNC calcola il passo e la profondità in base a queste formule:<br />

Passo in mm = 25,4 / numero di fili<br />

Passo in pollici = 1 / numero di fili<br />

Profondità in filettature interne = 0,6403 x Paso<br />

Profondità in filettature esterne = 0,6403 x Paso<br />

Filettatura Passo Profondità (mm)<br />

(mm) (pollici) Fili (mm) (pollici) Interni Esterni<br />

1/8 3,1750 0,1250 28 0,9071 0,0357 0,58082 0,58082<br />

1/4 6,3500 0,2500 19 1,3368 0,0526 0,85595 0,85595<br />

3/8 9,5250 0,3750 19 1,3368 0,0526 0,85595 0,85595<br />

1/2 12,7000 0,5000 14 1,8143 0,0714 1,16170 1,16170<br />

5/8 15,8750 0,6250 14 1,8143 0,0714 1,16170 1,16170<br />

3/4 19,0500 0,7500 14 1,8143 0,0714 1,16170 1,16170<br />

7/8 22,2250 0,8750 14 1,8143 0,0714 1,16170 1,16170<br />

1 25,4000 1,0000 11 2,3091 0,0909 1,47852 1,47852<br />

1 1/8 28,5750 1,1250 11 2,3091 0,0909 1,47852 1,47852<br />

1 1/4 31,7500 1,2500 11 2,3091 0,0909 1,47852 1,47852<br />

1 3/8 34,9250 1,3750 11 2,3091 0,0909 1,47852 1,47852<br />

1 1/2 38,1000 1,5000 11 2,3091 0,0909 1,47852 1,47852<br />

1 3/4 44,4500 1,7500 11 2,3091 0,0909 1,47852 1,47852<br />

2 50,8000 2,0000 11 2,3091 0,0909 1,47852 1,47852<br />

2 1/4 57,1500 2,2500 11 2,3091 0,0909 1,47852 1,47852<br />

2 1/2 63,5000 2,5000 11 2,3091 0,0909 1,47852 1,47852<br />

2 3/4 69,8500 2,7500 11 2,3091 0,0909 1,47852 1,47852<br />

3 76,2000 3,0000 11 2,3091 0,0909 1,47852 1,47852<br />

3 1/4 82,5500 3,2500 11 2,3091 0,0909 1,47852 1,47852<br />

3 1/2 88,9000 3,5000 11 2,3091 0,0909 1,47852 1,47852<br />

3 3/4 95,2500 3,7500 11 2,3091 0,0909 1,47852 1,47852<br />

4 101,6000 4,0000 11 2,3091 0,0909 1,47852 1,47852<br />

4 1/2 114,3000 4,5000 11 2,3091 0,0909 1,47852 1,47852<br />

5 127,0000 5,0000 11 2,3091 0,0909 1,47852 1,47852<br />

5 1/2 139,7000 5,5000 11 2,3091 0,0909 1,47852 1,47852<br />

6 152,4000 6,0000 11 2,3091 0,0909 1,47852 1,47852<br />

7 177,8000 7,0000 10 2,5400 0,1000 1,62636 1,62636<br />

8 203,2000 8,0000 10 2,5400 0,1000 1,62636 1,62636<br />

9 228,6000 9,0000 10 2,5400 0,1000 1,62636 1,62636<br />

10 254,0000 10,0000 10 2,5400 0,1000 1,62636 1,62636<br />

11 279,4000 11,0000 8 3,1750 0,1250 2,03295 2,03295<br />

12 304,8000 12,0000 8 3,1750 0,1250 2,03295 2,03295<br />

5.<br />

FILETTATURE NORMALIZZATE<br />

Filettatura Whitworth gas — BSP<br />

CNC 8070<br />

(REF. 1305)<br />

·247·

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