ONLINE ARTICLE CASTING QUALITY TEST METHODS


The use of testing and inspection to verify your castings meet your requirements is important, but be clear that it will reduce your bottom line. Castings are routinely visually inspected in the metalcasting facility for surface defects, improper fi lling or molding errors. But if additional inspection is required, it must be specifi ed by the customer. When specifying requirements and inspection methods, be sure the cost of your choices is justifi ed by savings in subsequent manufacturing operations


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Alcoa Still Committed to Castings Alcoa is by any measure a giant in the metals game, so it’s a good sign that the company has remained committed to its casting branch since purchasing Howmet in 2000.


Fluorescent penetrant inspection is used to detect tiny cracks, pores and other surface imperfections.


or in the higher quality of the product. Over-specifying quality requirements will raise the price of the casting without a return on value to the part. Read more at MetalCastingDesign.com.


The company recently fi lmed a spot for the Fox Business Network’s American Icon series at the Alcoa Howmet plant in Whitehall, Mich.


New Orleans Pump Station’s Castings Hold Great Responsibility


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This month’s question is available at MetalCastingDesign.com.


Back in September 2010, we published an article on 57,000-lb. ductile iron castings produced by St. Marys Foundry, St. Marys, Ohio. The castings were used to protect New Orleans against future fl oods as part of the world’s largest drainage pump station, which was a U.S. Army Corps of Engineers project.


Recently, we visited another facility contributing to the project. Bay Cast Inc., Bay City, Mich., cast 10-ft. diameter steel propellers for the pumping station, which is designed to handle the amount of water released by a 100-year-fl ood.


Visit MetalCastingDesign.com to read the full blogs and additional entries.


Nov/Dec 2011 | METAL CASTING DESIGN & PURCHASING | 3


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