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Foundry Management & Technology
Using Simulation to Design Feeding Systems for Investment Castings
David Schmidt Jan 01, 2019

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Figure 1
Finite Solutions Inc.

STL model of an impeller casting. ‘Naked’ simulation results, without filling.

Figure 2
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Feeding Zone 1: last point to freeze on the zone

Figure 3
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Feeding Zone 2: last point to freeze on the zone

Figure 4
Finite Solutions Inc.

Gate and Feeder Bar Sizing.

Figure 5
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Modulus data is used to size both the tapered gate and the feeder bar.

Figure 6
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Initial rigging design and material density plot, showing areas of poor feeding.

Figure 7
Finite Solutions Inc.

Improved feeding by inverting the casting, adding multiple gates on the flange.

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