Tolerances for Diecastings Din 1688

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TOLERANCES FOR PRESSURE DIECASTINGS (DIN 1688*)

1) Determining the spatial diagonal: The spatial diagonal R is that between the extreme points of the casting. It is calculated from the nominal dimensions of the prismatic body, which delimits the casting, whatever its shape

Tolerances of di mensions for lengths, widths, heights, central distances, diameters and roundings. Nominal Dimension Area Spatial over over over over over over over over over over over over Degree of Shape diagonal up to 18 30 50 80 120 180 250 315 400 500 630 800 exactitude dependency area 18 up to up to up to up to up to up to up to up to up to up to up to up to 30 50 80 120 180 250 315 400 500 630 800 1000

Table 1.

over 180

G TA 13

Intrinsic

over 1000 up to 1250

±0.14 ±0.17±0.20±0.23 ±0.27 ±0.32

Non-Intrinsic ±0.24±0.27 ±0.30±0.33 ±0.37±0.42

Intrinsic ±0.17±0.20±0.25±0.30 ±0.35±0.40±0.45 ±0.50±0.55±0.60 over 50 GTA 13/5 up to 500 Non-Intrinsic ±0.32±0.35±0.40±0.45±0.50±0.55±0.60±0.65±0.70±0.75 Intrinsic Non-Intrinsic Intrinsic over 500 GTA 14/5 Non-Intrinsic over 180

G TA 14

±0.22±0.26±0.31±0.37 ±0.44±0.50±0.60 ±0.65±0.70±0.80 ±0.90±1.00±1.20 ±1.30 ±0.42±0.46±0.51±0.57±0.64±0.70±0.80±0.85±0.90±1.00±1.10±1.20±1.40±1.50 ±0.25±0.35±0.40±0.45 ±0.55±0.65±0.75 ±0.80±0.85±0.95 ±1.10±1.20±1.40 ±1.60 ±0.55±0.65±0.70±0.75±0.85±0.95±0.95±1.10±1.10±1.20±1.40±1.50±1.70±1.90

Intrinsic dimensions are those in the same parts of the tool. Non-intrinsic dimensions are those created by the interaction of movable tool components, e.g. wall thickness and base thickness or dimensions affected by additives or extenders. *Important: We assume no liability for quoted standards.

Tolerances of dimensions for wall thicknesses, ledges and ribs. Spatial Degree of Shape Nominal dimensional area

Table 2.

TOLERANCES FOR PRESSURE


DIECASTING (DIN 1688)* CONT INUED


diagonal area

exactitude

up to 180

GTA 13

over 50 up to 500

GTA 13/5

over 180

GTA 14

over 500

GTA 14/5

dependency

up to 3

Intrinsic Non-Intrinsic Intrinsic Non-Intrinsic Intrinsic Non-Intrinsic Intrinsic Non-Intrinsic

±0.15 ±0.25 ±0.20 ±0.35 ±0.25 ±0.45 ±0.30 ±0.55

over 3 up to 6 ±0.20 ±0.30 ±0.25 ±0.40 ±0.30 ±0.50 ±0.40 ±0.65

over 6 up to 10 ±0.20 ±0.30 ±0.30 ±0.45 ±0.35 ±0.55 ±0.45 ±0.70

Intrinsic dimensions are those in the same parts of the tool. Non-intrinsic dimensions are those created by the interaction of movable tool components, e.g. wall thickness and base thickness or dimensions affected by additives or extenders.

TOLERANCES FOR CHILL CASTINGS DIN (1688)*

In the case of raw castings made of light metal alloys in the chill casting process, all deviations in dimensions are essentially dependent on : a). the dimensional accuracy of the mold, characterized by the degree of accuracy b). the position of the mold division, cores, extenders, characterized by the subdivision into intrinsic and non-intrinsic dimensions (see DIN 1680 part 1) c). the nominal dimensions.

Deviations in lengthwise dimensions (l engths, widths, heights, central di stances, diameters, roundings). Nominal Dimension Area over over over over over over over over over over over over over Degree of Shape up to 18 30 50 80 120 180 250 315 400 500 630 800 1000 accuracy dependency 18 up to up to up to up to up to up to up to up to up to up to up to up to up to 30 50 80 120 180 250 315 400 500 630 800 1000 1250 I nt rinsic ±0. 45 ±0. 50 ±0. 60 ±0. 75 ±0. 85 ±1. 00 ±1. 20 ±1. 30 ±1. 40 ±1. 60 ±1. 70 ±2. 00 ±2. 30 ±2. 60 GTA 15/5 Non-Intrinsic ±0.55 ±0.65 ±0.80 ±0.95 ±1.10 ±1.30 ±1.50 ±1.60 ±1.80 ±2.00 ±2.20 ±2.50 ±2.80 ±3.30

Table 1.

Deviations in thickness (wall thicknesses, ledges, ribs). Nominal Dimension Area Intrinsic dimensions are those in the same parts of the tool. Non-intrinsic dimensions are those created by the interactions of movable over over Degree of Shape tool components, e.g. wall thicknesses and base thicknesses or dimensions up to 6 10 affected by additives or extenders. accuracy dependency 6 up to up to 10 18 GTA 15/5 Intrinsic ±0.60 ±1.20 ±1.80

Table 2.



Non-Intrinsic

TOLERANCES FOR ALUMINUM PROFILES ACCORDING TO DIN EN 12020-2*

±0.80

±1.50

±2.20

The tolerances for the nominal dimensions (see table 1) depend on the following ratios: - diameter of the minimum circumscribing circle du divided by the minimum wall thickness Smin. - maximum wall thickness Smax divided by t he minimum wall thickness Smin. Tolerances for l inear measurements Tolerances for a ratio of du : Smin Range of up to 40 : 1 over 40 : 1 dimensions and a ratio of Smax : S min over up to up to 6 : 1 over 6 : 10 ±0.15 10 15 ±0.20 15 30 ±0.25 30 45 ±0.30 ±0.40 45 60 ±0.45 60 90 ±0.60 90 120

Table 1.

ABPH 800 (Full Profile)

120 150 180 240

150 180 240 300

Table 2.

±0.70 ±0.90 ±1.10 ±1.40

±0.80 ±1.00 ±1.20 ±1.50

Tolerances for the wall thickness of full profiles

Range of dimensions

ABPH 800 (Hollow Profile)

over

up to

1.5 3 6 10 15 20 30

1.5 3 6 10 15 20 30 40

Tolerances f or wall thickness ±0.15 ±0.20 ±0.25 ±0.30 ±0.40 ±0.50 ±0.60 ±0.70



Range of dimensions

ABPH 800 (Hollow Profile)

over 1.5 2 3 6 9 12 15

up to 1.5 2 3 6 9 12 15 20

Tolerances for the wall thickness with a circumscribing circle du to 75 ±0.20 ±0.20 ±0.25 ±0.35 ±0.50 ±0.60 ±0.70 -

over 75

over 130

over 250

to 130 ±0.25 ±0.25 ±0.30 ±0.40 ±0.55 ±0.70 ±0.80 ±1.00

to 250 ±0.30 ±0.35 ±0.50 ±0.70 ±0.85 ±1.00 ±1.20

to 300 ±0.40 ±0.60 ±0.80 ±0.95 ±1.10 ±1.30

We have attempted to present the information about our enclosures on this website in a straight-forward manner. We offer this information as accurate at the time of publication. Specifications are subject to change without notice. Rose+Bopla Enclosures is not responsible for inadvertent errors. ©2010 Phoenix Mecano Inc., 7330 Executive Way, Frederick, MD 21704, 301-696-9800, [email protected]

Tolerances for Diecastings Din 1688

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