自由锻都是以生产批量不大的锻件为主，采用锻锤、液压机等锻造设备对坯料进行成形加工，获得合格锻件。 自由锻的基本工序包括镦粗、拔长、冲孔、切割、弯曲、扭转、错移及锻接等。自由锻采取的都是热锻方式。

Free forging is in the production of ***all quantities of forgings, the forging, hydraulic press forging equipment is carried out on the blank forming process, obtain qualified forgings. The basic process of free forging including upsetting, stretching, punching, cutting, bending, torsion, displacement and welding etc.. The free forging is all hot forging.

自由锻造所用的工具简单，加工方法通用性强，生产准备周期短，因而应用较为广泛。自由锻分为手工锻造和机器锻造两种。手工锻造只能生产小型锻件，生产率也较低。

The tool used for free forging is simple, the versatile and the production period is short, so it is widely used. Free forging is divided into two kinds: manual forging and machine Manual forging can only produce ***all forgings, and the productivity is low.

锻造工艺过程一般由以下工序组成，即选取优质钢坯下料、加热、成形、锻后冷却。锻造的工艺方法有自由锻、模锻和胎膜锻。生产时，按锻件质量的大小，生产批量的多少选择不同的锻造方法。

The forging process is generally of the following processes, namely, the selection of high quality billets, heating, forming and cooling after forging. The forging process includes free forging, die forging and fetal membrane forging. When manufacturing, according to the size of forgings and the number of production batches, different forging methods are chosen.