Welding Of Aluminium Is Difficult Because

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Welding Of Aluminium Is Difficult Because. Good resistance to weld. Ad Find China Manufacturers Of Aluminum Welding.

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But the thermal conductivity of aluminum is five times that of steel which means that the heat dissipates very quickly. It also has high thermal conductivity and a very short temperature range between liquidus and solidus and when liquid its viscosity is very low. Many a failure of a welded structure thus occurs due to undetected lack of fusion in welded joints.

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Case of Aluminium The oxide coating on aluminum alloys causes some difficulty in relation to its weldability. Welding NDT weld defects lack of fusion. Also Aluminum takes more heat because of its property of absorbing and releasing the heat quicker. But the thermal conductivity of aluminum is five times that of steel which means that the heat dissipates very quickly.