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The Complete DFM Guide for Die Casting Parts (With Examples)-draft angles

April 1, 2026

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The Complete DFM Guide for Die Casting Parts (With Examples)-draft angles

Draft is the taper you provide on the walls of the part so it can be easily ejected from the die. Without a draft, the metal shrinks onto the mold as it cools, causing it to stick or gall.

  • Inside Walls: Require more draft because the metal shrinks onto the internal die features.

  • Outside Walls: Require less draft because the metal shrinks away from the outer cavity.

  • Standard Rule: A minimum of 1° to 2° is standard, but more is always better for tool longevity.

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