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An Example in Ductile Iron Casting  Axle Housing for Skid-Steer Loader

Controlling Pattern Costs

One of the manufacturing costs in casting is the cost of preparing the pattern.
  • The pattern is used to form the cavity in the sand mold. The cavity is shaped to the desired contours and dimensions of the final casting.
  • The pattern is positioned in the the open frame (flask) and sand is packed around the pattern. The pattern/tool is then removed, leaving the casting cavity in the sand mold.
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Aluminum is the material of choice for this pattern. The casting engineer has a design choice on how the pattern will be fabricated.  The fabrication method will have a direct impact on the cost of the pattern.

Choose a  fabrication method for the aluminum pattern

Cast or Machined

based on your estimate of best value and balance of machining costs, pattern life, and tolerance requirements.


Back

Choose a
Method

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Last Modified:May, 2000 by STG

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