




锻造工艺过程一般由以下工序组成,即选取钢坯下料、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.
镦粗 镦粗是对原坯料沿轴向锻打,使其高度减低、横截面增大的操作过程。这种工序常用于锻造齿轮坯和其他圆盘形类锻件。镦粗分为全部镦粗和局部锻粗两种。
Upsetting and upsetting is the process of forging the original billet along the axis, reducing its height and increasing its cross section. This process is usually used to forge gear blanks and other disc shaped forgings. The upsetting is divided into two kinds of upsetting and local forgings.
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,先将坯料拔成六角形,锻到所需长度后,再倒角滚圆,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.