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April 2016


This 6.5 inch diameter, 22 hollow complex aluminum extrusion for an electric vehicle motor housing for Wrightspeed Powertrains was supplied by Almag Aluminum of Brampton, Ontario, Canada. Each of the 20 hollows surrounding the outside of the housing incorporate 48 serrated inner fins for an additional 12% surface area. The 6360 alloy was an optimal choice for thermal management while still providing excellent machining properties for secondary fabrication. The four small outer lobes are bonded using adhesive and are used as mounting brackets. Tooling was provided by Exco Canada. (Photo: Robert Ciolfi.)


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