Directed Electronics D2400 Instruções de Operação descarregar pdf (Página 13)

7. Speed regulation

7.1 Speed selection

The spindle speed is to be selected according to material type and the diameter of the work piece:

Small diameter

⇒

relatively high speed

Large diameter

⇒

low speed

The cutting speed is the result of rotational speed and diameter.

With a known and required cutting speed, the necessary spindle speed can be calculated in the

following way:

Example: An aluminium workpiece which has a diameter of 20 mm is to be turned

with a cutting speed of 100 m/min.

Now, from those speeds available, the one which is closest to the ideal

speed of 1592

/min. is selected (in our case 1600

/min.).

7.1.1 Speed setting for working with Aluminium

workpiece- Ø approx. r.p.m. cutting speed m/min

10 mm 2300 75

20 mm 1600 100

40 mm 800 100

60 mm 530 100

80 mm 400 100

100 mm 320 100

7.1.2 Speed setting for working with steel

workpiece- Ø approx. r.p.m. cutting speed m/min

10 mm 1600 50

20 mm 800 50

40 mm 400 50

60 mm 270 50

80 mm 200 50

100 mm 160 50

eed

(

)

cutting speed (V) x 1000

diameter of workpiece (d) x 3,14

100 x 1,000

20 x 3.14

100,000

62.8

= 1592

/min

1 2 ... 8 9 10 11 12 13 14 15 16 17 18 ... 38 39

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