The 6×××series aluminum sheet: the representative aluminum sheet of the 6×××series is the 6061, and there are mainly magnesium and silicon elements, so it has the advantages of the 4×××series and 5×××series aluminum sheet, which is a kind of cold processed aluminum forged products, and it meet the requirement of some application in high corrosion resistance and oxidation resistance, it can be easily used and coated, which can be used in the low pressure weapon and the joint of the plane. The 7×××series aluminum sheet: the representative aluminum sheet of the
7×××series is the 7075, and the main element is the Zinc, which also belongs to the aviation series. It is the aluminum, magnesium, zinc and copper alloy, which is the hot processed alloy, and it also belongs to the super hard aluminum alloy. The aluminum sheet is specially processed and won’t be transformed. All the thick aluminum is checked by the ultrasonic wave to ensure that there is no impurity. The thermal conductivity of 7075 aluminum is high, which can shorten prototyping time and improve efficiency. The main character of it is the high hardness and high strength, aluminum alloy 7075 is often used in the aircraft manufacturing.