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Latest Customer Inquiries on Aluminum Sheet Suppliers
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Aluminum Sheet Suppliers Are Proud Of Its Properties
Aluminum is rather a crucial material used extensively in various industries. The mechanical properties it inherits are apt for various industries and make it great for the industry. With their amazing qualities for workability, they are prone to the formation of Lüders bands during forming. Aluminum sheet suppliers are tremendously happy about its market share increasing continuously and it is the most commonly used alloy for automotive applications.
Some Of The Critical Properties Of Aluminum Sheet:
Elastic Modulus
The elastic modulus of aluminum (70
GPa) is made about one-third that of steel (210 GPa). This can be reduced by
increasing the blank holder force, the amount of stretching and the sheet
thickness. The forming operation must be optimized to ensure at least 2%
stretch throughout the part.
Friction
Friction between the tool and the aluminum sheet suppliers, it is expected to be higher compared to steel sheet as aluminum has a surface roughness (Ra) from 0.25 to 0.38 micron. Thus, in comparison, the Ra of steel sheet is about 0.63 to 0.88 micron. The smoother texture of aluminum requires dry, wax-like lubricants.
Formability
For the stamping of autobody parts, the lower formability of aluminum compared to steel can be offset by using technology such as local blank holder force control with multiple-point hydraulic cushions, advanced addendum design or warm forming. Present R&D efforts are focused on heating the sheet to warm forming temperature while keeping the dies at room temperature.
Thus, the parts previously designed for steel needs to be redesigned to achieve the same stiffness. Aluminum sheets have relatively good formability and highly resistant to corrosion. They are used mostly for inner-panel applications. Since, they have ultimate tensile strength and most amazingly, it cannot be heat-treated which is apt for automotive industry.