Extruded I sections of 7075-T6 aluminum were machined into four different sections shapes: L, short depth L, T, and short depth T. The furnace was preheated to 416°C (780°F) and the samples were placed inside. The temperature was raised to 471°C (880°F) and then the samples were quenched in either a 30% polyalkylene Glycol solution or water, both at 15°C (59°F). Points on the distorted samples were recorded before and after the solution treatment; the difference between the measurements indicated the extent of warpage.