. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . CASTINGS IN ACTION
Process Modeling Leads to Winning Zinc Diecasting
Cast Component: Fire truck pump intake screen. Material: Zinc #7. Process: Diecasting.
Casting Supplier: Caudle Manufacturing Co. Inc., Miami. Customer: Waterous Co., South St. Paul, Minn.
• The replaceable, sacrifi cial intake screen protects the iron pump components from galvanic corrosion. Machining the part was too costly.
• Caudle Manufacturing used fl ow simulation software to determine the best way to gate the casting so it could be fi lled without requiring fi lling bridges across the open windows of the part. The new design allowed the part to be cast and trimmed without any additional machining required.
• The part was recognized as the best non-electroplated zinc diecasting over 0.375 lbs. (6 oz.) in the 2009 North American Die Casting Association Casting Competition.
JANUARY/FEBRUARY 2010
METAL CASTING DESIGN & PURCHASING
21
Photo by Vividpixels,
Dreamstime.com.
Photo courtesy North American Die Casting Association, Wheeling, Ill.
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