Forming 7075 Aluminum Sheet

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Forming 7075 aluminum sheet. Aluminum sheet plate 7075 is normally used for aerospace military and automotive applications. Its use parallels that of 2024 with 7075 selected when higher mechanical properties are desired. 7075 t651 aluminum plate this aluminum plate is made of one of the strongest of the aluminum alloys. When forging is used it s required that the alloy be placed in temperatures between 700 and 900 degrees f.

Warm forming technology is a promising approach to improve the formability of peak aged 7075 aluminum alloys aa7075 t6 5 6 7 8 where the aa7075 t6 blank is heated to target temperatures. This alloy is precipitation hardened to very high. Bending is a delicate and demanding process most of the time and common fabricating processes require a degree of formability that make your choice of proper alloy critical. 7075 is the strongest aluminum with the strength of many steels while retaining aluminum s lightweight qualities and corrosion resistance.

7075 is comparatively tough for an aluminum alloy. With zinc as the dominant alloying element the 7075 aluminium alloy also known as aircraft aluminium or aerospace aluminium was the first alloy of high strength composed by al zn mg cu that was able to successfully combine the perks of the inclusion of chromium to develop high stress corrosion cracking resistance in sheet products. Aircraft spruce catalog says 7t to 12t for bending 1 2 7075 t6 90 degrees cold. As with alloy 2024 alloy 7075 is available in bare form or in clad alclad to offer even further protection from corrosion.

Corrosion resistance and machinability are rated as fair though the addition of chromium provides good stress corrosion cracking resistance in 7075 aluminum sheet products. The available sizes for the 7075 aluminum plate are between 25 and 8 inches thick 48 5 and 60 5 inches wide and up. In high purity forms aluminum is soft and ductile. The mechanical properties of 7075 depend greatly on the tempering of the material.

7075 aluminum sheet plate stock is available in full size and custom cut lengths. 7075 aluminum is an aluminum zinc alloy with 1 8 zinc in addition to small amounts of magnesium and small quantities of copper and chromium. That equates to a radius of between 3 1 2 and 6. The weldability of this metal is low but the formability is great.

Un heat treated 7075 7075 0 temper has a maximum tensile strength of no more than 280 mpa 40 000 psi and maximum yield strength of no more than 140 mpa 21 000 psi. As such it produces greater springback during forming operations. If forming difficulty is encountered in the annealed condition then warming the material to 200 250 f will assist formability. Which aluminum alloy bends the best is a a common question customers want the answer to.

It can be formed in the annealed condition and subsequently heat treated. This literature also says where range is shown use smaller radius with extreme caution at enpro systems we once tried rolling up a ring about 10 foot id from 4 6061 t6 in a plate roll that had at least 20 rolls.