自由鍛都是以生產批量不大的鍛件為主，采用鍛錘、液壓機等鍛造設備對坯料進行成形加工，獲得合格鍛件。 自由鍛的基本工序包括鐓粗、拔長、沖孔、切割、彎曲、扭轉、錯移及鍛接等。自由鍛采取的都是熱鍛方式。

Free forging is in the production of small 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.

機器鍛造是自由鍛造的主要方法，可鍛造質量達到幾百噸的大型鍛件，這使得自由鍛在重型機械制造中具有特別重要的作用。Whendrawing,itisnotusuallydrawnatonetime。例如，水輪機主軸、多拐曲軸、大型連桿、重要的齒輪零件，在工作時都承受很大的載荷，常采用自由鍛造方法生產毛坯，使其具有很高的力學性能.滿足使用要求。

Machine forging is the main method of free forging. It can forge large forgings with a quality of hundreds of t, which makes free forging play a very role in heavy machinery manufacturing. For example, the main shaft of a hydraulic turbine, a multi crank crankshaft, a large connecting rod, and important gear parts are subjected to heavy loads when they are working. Free forging is often used to produce blanks, so that they have high mechanical properties.

鍛造工藝過程一般由以下工序組成，即選取鋼坯下料、加熱、成形、鍛后冷卻。鍛造的工藝方法有自由鍛、模鍛和胎膜鍛。生產時，按鍛件質量的大小，生產批量的多少選擇不同的鍛造方法。

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.