Aluminum free forging raw materials: 1) Ingot blanks should be made from small grains of ingot blanks. In addition, homogenization annealing should be carried out before use to improve product structure and plasticity. 2) Generally speaking, extruded blanks are often used in forging free forgings of medium, small and low plastic aluminium alloys. However, upsetting and elongation of extruded wool should be carried out to eliminate the influence of anisotropy of extruded bar.
Classification of aluminum free forgings:
Aluminum free forging is a universal process, which can forge forgings of various shapes. According to the characteristics of forging process, free forgings of aluminium alloy can be divided into four categories:
Aluminum forged block, aluminum forged ring and aluminum forged cylinder, shaft and rod forgings, bending forgings, etc.
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|Forging method||Forging types||Maximum weight||Maximum specs||Alloy||Tempers||Standard|
|Aluminum free forgings||Aluminum forged square block||≤9T||Length≤ 7000mm,Width≤ 2000mm,|
|Aluminum forged disc||≤5T||Diameter≤ 2500mm|
|Aluminum forged rings||≤5T||Quenched ring outer diameter≤ 2500mm,|
Non-quenched ring our diameter≤ 4000mm,height≤ 500mm
|Aluminum forged cylinder||≤5T||Out er diameter200- 800mm,length≤ 2000mm;|
our diameter 801- 2000mm,length≤ 1500mm;
|Long axis||≤8T||length≤ 7000mm,diameter≤ 800mm|
|Backward extrusion||Aluminum forged cylinder||Out diameter≤ 830mm,inner diameter≤ 650mm,|
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