Cast Aluminum
Cast aluminum is an aluminum alloy with low strength and high toughness, ideal for castings and lightweight construction. It contains copper and silicon. It flows well at high temperature.
Physicochemical mechanism of action
Cast aluminum is an aluminum alloy with low strength and high toughness, ideal for the production of molded parts and lightweight structures. It typically contains up to 5 % silver and 1 % manganese. At high temperature, it can transform into a liquid phase.
Metallurgical relevance & risks in welding
Cast aluminum has low strength and is therefore particularly prone to cracking and deformation during production. High toughness can lead to stress build-up, which in turn can lead to hot cracks or damage to the workpiece.
Workshop practice & instructions
When machining cast aluminum, careful temperature control is essential. The maximum working and production time should be observed to avoid deformation. When welding or joining, a special cast aluminum welding material must be used that takes into account the chemical properties of the workpiece.