在芯棒上拔长。锻造时，先芯棒插入冲好孔的坯料中，然后当作实心坯料进行拔长。拔长时，一般不是一次拔成，forging采购，先将坯料拔成六角形，锻到所需长度后，再倒角滚圆，forging报价，取出芯棒。为便于取出芯棒，芯棒 的工作部分应有1：100 左右的斜度。
Pull on the mandrel. When forging， insert the mandrel into the billet of the hole and then pull it out as a solid billet. When drawing， it is not usually drawn at one time. First， the blank is drawn into a hexagonal shape， forged to the required length， then chamfered and rounded， and the mandrel is removed. To facilitate the removal of the mandrel， the working part of the mandrel should h**e a slope of about 1:100.
拔长
也称延伸，它是使坯料横断面积减小、长度增加的锻造工序。拔长常用于锻造杆、轴类零件。
自由锻造的基本工序包括镦粗、拔长、冲孔、弯曲、扭转、错移、切割及锻接等。
Pulling length Also known as elongation， it is a forging process to reduce the cross-sectional area of the billet and increase the length. Pullout is often used in forging rods and shaft parts. The basic processes of free forging include upsetting， drawing， punching， bending， torsion，forging， offset， cutting and forging.
锻件是金属被施加压力，通过塑性变形塑造要求的形状或合适的压缩力的物件。这种力量典型的通过使用铁锤或压力来实现。锻件过程建造了精致的颗粒结构，并改进了金属的物理属性。
A forged piece is an object that is applied to the metal by pressure to shape the required shape or the appropriate compression force by plastic deformation. This force is typically achieved by using a hammer or pressure. The process of forging has built a fine particle structure and improved the physical properties of the metal.
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