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May 13 - 16, 2008 |
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Extrusion/Die Practical 147 PR Friday, May 16 - 8:30am Optimizing AA3003 for Extrudability and Grain Size Control Nick Parson, Ram Ramanan -- Alcan Inc., Canada AA3003 extrusions widely used in heat exchangers, especially in fluid transfer lines, are typically produced in drawn and annealed tempers to combine dimensional control with formability. One key product feature is the post-annealed grain size which controls the ability to bend and end-form tubing without “orange peel” occurring. Key factors controlling extrusion speed and final grain size, including iron content’s effect are examined. |
