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Drop Bottom Heat Treatment Furnace

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7. The "forgings" are then sent to a free-standing, drop-bottom heat-treat furnace where they are heat-treated to the proper tensile strength. This brings the temper of the aluminum from what is known as a "zero condition" to a T6 temper. The forgings are loaded into racks and hoisted into the furnace where they are baked at approximately 985 degrees. Following heat-treating, they are quenched in 100-degree water. Significant attention is paid to this process in an effort to ensure that the aluminum does not distort.