Recommendations for designing die castings are usually based on ideal practices or situations that need to be avoided. However, like most rules, there are exceptions. These will affect the cost, appearance and/or quality of the final product. Listed below are guidelines that should be considered when designing die casting:

Specify thin profiles that are easy to die-cast, but still provide sufficient strength and rigidity. Use ribs as much as possible to achieve maximum strength and minimum weight.

Make the parts as uniform as possible. Where the cross-section must be changed, transition should be made gradually to avoid stress concentration.

Keep the shape simple and avoid unnecessary projections.

Slight convexity is preferable to larger flat surfaces, especially on electroplated or highly finished parts.

Specify coring for holes or grooves to save metal and total cost, which exceeds tool cost.

The design core is easy to take out, avoiding complicated mold structure and operation.

Avoid using small iron cores. They are easy to bend or break, so they need to be replaced frequently. Drilling or punching holes in die castings is generally cheaper than maintaining small cores.

Avoid using undercuts that increase mold or operating costs, unless metal savings or other advantages can fully guarantee these additional costs.

Provide sufficient draft on the side walls and core to easily remove the die casting from the mold without deformation.

Provide fillets at all inner corners and avoid sharp outer corners. For special considerations, it may be necessary to deviate from this practice.

The die casting design must provide the position of the thimble. Consider the effect of the final injector marking on appearance and function. The position of the ejector pin largely depends on the position and size of the metal shrinkage on the mold part as the metal cools in the mold.

When there is a net savings, specify die-cast threads instead of cutting threads.

Die castings that affect the appearance of the finished product may be designed for aesthetic purposes and coordinate with matching parts.

The design of the insert should be firmly fixed and provide proper anchoring to fix it in the die casting.

Design parts to minimize the cost of burr removal.

Do not specify dimensional tolerances as closer than the basic requirements. This increases the cost.

Design die castings to minimize processing.

If machining is specified, there should be enough metal left to make the required cut.

Consider the contact area of ​​the surface to be polished or polished. Avoid deep recesses and sharp edges.

Can produce molds for simple and complex parts. Parts with external undercuts or protrusions on the side walls usually require sliding parts, which can increase cost. However, in many cases, the final metal savings or other advantages (such as uniform wall sections) will offset the additional cost or affect the net economy of the overall cost. This is especially true when a large amount is involved.

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