Extruded I sections of 7075-T6 aluminum were machined into four different sections shapes: L, short depth L, T, and short depth 7. The furnace was preheated to 416 degrees C (780 degrees F) and the samples were placed inside. The temperature was raised to 471 degrees C (880 degrees F) and then the samples were quenched in either a 30% polyalkylene Glycol solution or water, both at 15 degrees C (59 degrees F). Points on the distorted samples were recorded before and after the solution treatment; the difference between the measurements indicated the extent of warpage.
Copyright 2007 ASM International. This paper was published in Journal of Materials Engineering and Performance, Volume 16, Issue 2, pp. 242-247 and is made available as an electronic reprint with the permission of ASM International. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplications of any material in this paper for a fee or for commercial pruposes, or modification of the content of this paper are prohibited. Available on publisher's site at http://www.springerlink.com/content/06lq014445188254/.
Es-Said, O.S., Ruperto, T.M., Vasquez, S.L., Yue, A.Y., Manriquez, D.J., Quilla, J.C., Harris, S.H., Hannan, S., Foyos, J., Lee, E.W., Pregger, B., Abourialy, N., and Ogren, J., 2007, "Warpage Behavior of 7075 Aluminum Alloy Extrusions," Journal of Materials Engineering and Performance, 16(2), pp. 242-247.