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通過鍛造能消除金屬在冶煉過程中產生的鑄態疏松等缺陷，優化微觀組織結構，同時由于保存了完整的金屬流線，鍛件的機械性能一般優于同樣材料的鑄件。

Forging can eliminate the defects such as casting porosity and so on during the smelting process, and optimize the microstructure. At the same time, because of the intact metal flow line, the mechanical properties of the forgings are generally better than those of the same materials.

鋁合金鍛件的生產可在多種鍛造設備上進行。自由鍛造是利用沖擊力或壓力使金屬在上下砧面間各個方向自由變形，不受任何限制而獲得所需形狀及尺寸和一定機械性能的鍛件的一種加工方法，簡稱自由鍛。鍛錘可用于開式模鍛和閉式模鍛，其生產費用較低，鍛打時需要控制好錘頭的高度、打擊力量和速度，因為在急劇變形過程中鋁合金對應變速率敏感并具有放熱性。機械壓力機和螺旋壓力機都廣泛用于鋁合金閉式模鍛，適宜于生產中等尺寸、大體積和形狀適度的鋁鍛件。

The production aluminum alloy forgings can be carried out on a variety of forging equipment. Hammer can be used for open die forging and closed die forging, the production cost is low, when the need to  the forging hammer height, strike force and speed, because of the sharp deformation in the process  Alloy strain rate sensitive and exothermic. Mechanical press and screw press are widely used in aluminum alloy closed die forging, which is suitable for the production of medium size, large volume and moderate shape  aluminum forgings.

自由鍛生產率低，加工余量大，但工具簡單，通用性大，故被廣泛用于鍛造形狀較簡單的單件、小批生產的鍛件。自由鍛設備有空氣錘、蒸汽-空氣錘和水壓機等，分別適合小、中和大型鍛件的生產。

Free forging has many advantages such as low productivity, large machining allowance, but simple tool and versatility. So it is widely used for forging single piece and small batch forgings with simpler shape. The free forging equipments include air hammer, steam air hammer and hydraulic press, etc., which are suitable for the production of small and medium heavy forgings, respectively.