To view the full
program of more than 100 Metalcasting Congress presentations, visit
www.metalcastingcongress.org.
acceptable, as measured by metal- lurgical, destructive and nondestruc- tive testing. Castings with a structural weakness (previously accepted be- cause the major defects were effec- tively invisible oxide bifilms or other inclusions or anomalies that gave little or no classical nondestructive testing indications) are rejected. Conversely, castings that would have been rejected for negative indications are accepted if they are assessed to be structurally acceptable. Improved software now enables quantitative analysis of the resonance patterns of these structur-
ally defined “acceptable or not” parts, giving resonant testing that is compen- sated to accept normal process varia- tions, such as alloy composition and minor shape, size and thermal history differences. The concept provides a quality assurance method that pre- dicts the structural performance of the casting, reduces false reject scrap and reduces testing costs.
Thursday, April 7, 2011
2:00 PM Room: Euphoria
PANEL: Exploring Iron Casting’s Po-
tential for Designers & Buyers (11-176) Scott Lammers, American Foundry
Society, Schaumburg, Ill.; Steve Daw- son, SinterCast Ltd, Cobham, Surrey, U.K.; John Keough, Applied Process Inc., Livonia, Mich.
Panel Topics: Lammers: What Is the Difference Between All These Irons? Dawson: Cylinder Block and Head Materials: Gray Iron, Compacted Graphite Iron or Aluminum? Keough: Austempered Ductile Iron: A Green Alternative
This panel presentation looks at the world of cast iron and how new developments are reshaping the choices designers and buyers must make when sourcing engineered metal castings.
METAL
March/april 2011
Metal casting Design anD purchasing
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