Draft angles for surfaces VDI-3400

VDI

Ra (µm)

Rz (µm)

PA

PC

ABS

12

0.4

1.5

0.0

1.0

0.5

15

0.6

2.4

0.5

1.0

0.5

18

0.8

3.3

0.5

1.0

0.5

21

1.1

4.7

0.5

1.0

0.5

24

1.6

6.5

0.5

1.5

1.0

27

2.2

10.5

1.0

2.0

1.5

30

3.2

12.5

1.5

2.0

2.0

33

4.5

17.5

2.0

3.0

2.5

36

6.3

24.0

2.5

4.0

3.0

39

9.0

34.0

3.0

5.0

4.0

42

12.5

48.0

4.0

6.0

5.0

45

18.0

69.0

5.0

7.0

-

Ra = Superficial roughness in microns.

Rz = Roughness depth in microns.

PA =  ° draft angle in Polyamide.

PC = ° draft angle in Polycarbonate.

ABS = ° draft angle in Acrylonitrile Butadiene Styrene.

 

Note: Materials with glass fiber require a bigger draft angle.