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A Design Study in Rapid Prototyping for Castings                                        
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Magnesium

  • The magnesium alloy has much higher values for modulus, thermal conductivity, tensile strength, and thermal stability, as compared to the polyimide polymer.
  • In addition, the magnesium has a 33% weight savings over the aluminum, even though the aluminum has a moderate benefit in mechanical and thermal properties.
  • Given the imperative to save weight, the magnesium is the material of choice

The magnesium is the best choice
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