Honorable Mention
Fan Housing
O’Fallon Casting O’Fallon, Missouri
Material: F357-T6 aluminum. Process: Investment casting. Weight: 6.625 lbs. Dimensions: 9.5 x 8 x 8 in. Converted From: Commercial helicopter.
•
The interior of the casting contains 13 0.03-in. to 0.07-in. thin blades attached to the motor housing in the main case. The blades provide aerodynamics to produce a laminar fluid flow and also act as a heat sink.
• The investment casting process enabled the unit to be cast as a single piece, which also includes a mounting platform for a motor drive, an inlet flange for attach- ment to a condenser, and clevises to mount the unit.
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May 2014 MODERN CASTING | 29
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