Plastic processing of aluminum and aluminum alloys should ensure stable, consistent dimensional accuracy, mechanical properties and good surface quality. Care must also be taken to prevent mechanical damage and corrosion, to control grain size and texture, and these quality requirements are primarily guaranteed by production processes and equipment.
Aluminum and its alloys generally have good plasticity and are easy to plastically process. The phase composition of hard aluminum is complex, and there are brittle structures such as low-melting phase and intermetallic compound. Its plastic processing has some characteristics: such as homogenization to eliminate internal stress and intragranular segregation generated when billet cooling; billet The surface is milled to remove surface segregation from the low melting phase.
