Two Types of Aluminum Processing
Aluminum processing is classified according to the temperature characteristics of the workpiece during processing
According to the temperature characteristics of the workpiece during processing, aluminum and aluminum alloy processing can be divided into hot processing, cold processing and warm processing.
1 Hot working
Thermal processing refers to the plastic forming process performed on aluminum and aluminum alloy ingots above the recrystallization temperature. In hot processing, the ingot has higher plasticity and lower deformation resistance, and it is possible to produce a product with a large deformation amount in a small capacity device. In order to ensure the structural properties of the product, the heating temperature, deformation temperature, deformation speed of the workpiece, the degree of deformation, the temperature at the end of deformation , the cooling rate after deformation should be strictly controlled. Common aluminum alloy thermal processing methods include hot extrusion, hot rolling, hot forging press, hot forging, liquid die forging, semi-solid forming, continuous roll-casting, continuous casting and rolling, continuous casting and continuous extrusion.
2 Cold working
Cold working refers to a plastic forming process that is completed below the temperature at which recovery and recrystallization are not produced. The essence of cold working is the combination process of cold working and intermediate annealing. Cold processing can be to the final product with smooth surface, precise size, good structural properties and meeting different performance requirements: the most common cold processing methods include cold extrusion, cold forging, cold rolling of pipes, cold drawing, cold rolling of strip and foil, cold stamping, cold bending, spinning, etc.