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TPC tools engineering – Carbide Drills

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Foratura/Lavorazione fori - Drilling/Machining of bores<br />

Bohren/Bearbeitung von bohrungen - Perçage/Usinage des trous<br />

INDICAZIONI E CONSIGLI PER LA FORATURA CON PUNTE IN METALLO DURO<br />

INSTRUCTIONS AND SUGGESTIONS FOR MACHINING WITH CARBIDE DRILLS<br />

PRESSIONE E PORTATA REFRIGERANTE<br />

COOLANT PRESSURE AND FLOW RATE<br />

L<br />

Pressione-Pressure<br />

D5<br />

Portata-Flow rate<br />

D=8 D=16<br />

BAR/PSI<br />

L/min.<br />

BAR<br />

< 3 X D<br />

20÷30 10÷20<br />

1,5÷3 8÷10<br />

> 3 X D<br />

30÷40 20÷30<br />

2,5÷4 12÷15<br />

D<br />

L<br />

- Per forature generiche usare una concentrazione del refrigerante minima<br />

del 6-8%.<br />

- Per forature di acciai legati, acciai inox e leghe resistenti al calore, usare<br />

una concentrazione minima del refrigerante del 10%.<br />

- For general drilling use a minimum coolant concentration of 6-8%.<br />

- For drilling steel alloys, stainless steel, and heat resistant alloys, use a<br />

minimum coolant concentration of 10%<br />

PROFONDITÁ UTILE DI FORATURA<br />

USEFUL DRILLING DEPTH<br />

D1<br />

D2<br />

Profondità utile di foratura<br />

Useful drilling depth<br />

2xD1<br />

€<br />

request price list <strong>–</strong> www.tpc-<strong>tools</strong>.com!<br />

L2<br />

- Per una buona evacuazione del truciolo, la profonditá utile di foratura si ricava sottraendo alla lunghezza dell’elica (L2), 2 volte la<br />

dimensione del diametro (D1)<br />

- For a good chip evacuation, the best useful drilling depth is calculated by subtracting twice the size of the diameter (D1) from the<br />

length of the drill flute (L2)<br />

L1<br />

C 90

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