Best-In-Class
Coolant Collector Stahl Specialty Company, Warrensburg, Missouri
Material: 356 aluminum. Process: Semipermanent mold. Weight: 25.47 lbs. Dimensions: 41 x 14 x 6 in. Application: 15L diesel engine coolant collector.
• The complexity of this coolant collector casting is unique to the cus- tomer and presented a design challenge of maintaining core position and wall thickness given the long span between core prints. Leak test- ing was required at 36 psi with a maximum allowable flow rate of 4 cc/minute. In addition, the casting provider overcame a high incident of outgassing of “core gas” during the casting process.
• Three separate chambers in the compact part distribute coolant from the radiator to separate areas of the engine. The aluminum casting provides a significant weight savings from its predecessor.
Honorable Mention Duct
Barron Industries Oxford, Michigan
Material: A356-T6 aluminum. Process: Investment casting. Weight: 1.275 lbs. Dimensions: 13.4 x 8.3 x 4.3 in. Converted From: Fabrication.
• For use on the General Dynamics Abrams tanks, this investment cast component is part of the heating ventilat- ing air conditioning system used to cool the electronics on the vehicle.
• The investment casting process offered a cost-effective means of production compared to aluminum fabrication, allowing for tight space configuration and multiple attachment points.
26 | MODERN CASTING June 2013
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