About die casting mould design

1. What is a good die casting mould design?

— Good die casting mold design comes first.

a. Die Casting Mould parting line design

According to the structure of the product and the convenience of the mold, first, determine the parting line of the parting surface of the mold.

b. Die casting mould shrinkage ration design.

Through precise calculation, taking into account the shrinkage rate of the product and the structure of the die-casting part, the final finished product size is within the tolerance range.

c. The die casting mould design needs to consider venting.

Only when the gas inside the die-casting part is fully discharged, so that the internal metal structure of the die-casting part can be tight and there will be no pores after processing.

d. Machining allowance of die casting parts

When designing the mold, consider the size of the die casting blank and leave a post-processing allowance. While ensuring the machining accuracy. The remaining machining allowance will not cause the generation of pores.

2. How to make a good die casting mould design?

— Consider the die casting material characteristic, die casting parts constructions, & CNC machining requirements.

a. Consider the shrinkage of the material itself according to the material.

According to the characteristics of aluminum alloy, zinc, alloy, magnesium alloy, copper alloy material itself combined with product modeling. Including the thickness of the product to set the design of the mold shrinkage.

Even with the same material, different structures, and product wall thicknesses will be taken into account when deciding shrinkage.

b. Consider the fluidity, and wall thickness, for the feed port and runner, rigorous calculation.

Zinc alloys and aluminum alloys have different flow properties. They are all the aluminum alloy, A356, A380, AlSi12Fe, AlSi9Cu3, AlSi10Mg, and ADC12, because of the difference in silicon content and magnesium content, the fluidity is also different.

c. Thin-walled and thick-walled parts, exhaust design, and cooling system design are different.

d. A reasonable machining allowance is required according to the accuracy of the machining drawings.

e. Validate our mold designs with mold flow analysis.

Our mold designer has more than 30 years of experience in die casting mold design, production and die casting, so mold flow analysis is largely an aid to finally verify the designer’s design concept.

3. Click the picture, see the mould-making process of YONTONE, step by step:

zinc die casting mold making manufacturer

4. Conclusion:

All the die casting mould designs we do ultimately take into account the high efficiency of die casting production, the ease and convenience of the deburring process, and ultimately achieve high production and save costs for customers.

So it looks like the same die casting mold, the lifetime is different, and the efficiency of die casting production, and the efficiency of the deburring are also different.

Control over the machining allowance will directly affect the scrap rate and the production efficiency.

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