Draft Requirements

Draft is necessary on surfaces parallel to the direction of the die draw because it facilitates the ejection of the part from the tool.

  • It is not common practice to compute the draft angle for each feature on a component, and it is normally generalized with some exceptions
  • Twice as much draft angle is recommended for inside walls or surfaces as for outside walls or surfaces
  • This is because the alloy solidifies and shrinks onto the features that form the inside surface and away from the features that form the outside surfaces.

To learn more about draft requirements or general die casting capabilities sign up for a free on-site seminar!

MULTI-SLIDE ZINC DIE CASTING
Cores 0 Degree ≤ 6.35
0.15 Degree > 6.35
0 Degree ≤ .250”
0.25 Degree > .250”
Cavity 0-0.15 Degree 0-0.25 Degree
CONVENTIONAL ZINC DIE CASTING
Cores 1/2 Degree 1/2 Degree
Cavity 1/8 – 1/4 Degree 1/8 – 1/4 Degree
PRECISION ALUMINUM DIE CASTING
Cores 2 Degrees 2 Degrees
Cavity 1/2 Degree 1/2 Degree

Would you like further assistance with your die casting project? Contact our engineering team today, we can help you through all stages of the process. 

You may also be interested in trying our interactive metal selector where you can select the right material for your next project by filtering mechanical and physical properties. 

 

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Dernière mise à jour 11.11.2019