锻造法兰的生产工艺流程

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 usually composed of the following processes, namely, the selection of quality steel billet, heating, forming and cooling. The forging process has a free forging, die forging, and tire forging. In the production, press the mass of the forging parts, the quantity of the batch of different forging methods.

自由锻生产率低，加工余量大，但工具简单，通用性大，故被广泛用于锻造形状较简单的单件、小批生产的锻件。自由锻设备有空气锤、蒸汽-空气锤和水压机等，分别适合小、中和大型锻件的生产。模锻生产率高，操作简单，容易实现机械化和自动化。模锻件尺寸精度高，机械加工余量小，锻件的纤维组织分布更为合理，可进一步提高零件的使用寿命。

It is widely used in forging simple pieces and small batches of forging parts. The free forging equipment is equipped with pneumatic hammer, steam air hammer and hydraulic press, which are suitable for the production of small and large forgings. High productivity, easy operation, easy mechanization and automation. The size of die forging is high, the machining allowance is small, and the fabric of the forging is more reasonable, which can further improve the service life of the parts.

 

 

一、自由锻的基本工序：自由锻造时，锻件的形状是通过一些基本变形工序将坯料逐步锻成的。自由锻造的基本工序有镦粗、拔长、冲孔、弯曲和切断等。

The basic process of free forging: when forging, the shape of the forging is gradually forged through some basic deformation process. The basic process of forging and forging is upbold, long, piercing, bending and cutting.

1.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。

Upset upsetting is the operation process that reduces the height of the raw material and increases the cross section. This process is used for forging gear billets and other disc shaped forgings. The heading is divided into full heading and partial forging.

2.拔长 拔长是使坯料的长度增加，截面减小的锻造工序，通常用来生产轴类件毛坯，如车床主轴、连杆等。

The length of the shaft is increased by the length of the billet, the forging process of the reduction of the section is usually used to produce the spindle such as the lathe spindle, the connecting rod and so on.

3.冲孔 用冲子在坯料上冲出通孔或不通孔的锻造工序。

The forging process of punching holes through holes or holes in the blank.

4.弯曲 使坯料弯曲成一定角度或形状的锻造工序。

The forging process that bends the blank to a certain Angle or shape.

5.扭转 使坯料的一部分相对另一部分旋转一定角度的锻造工序。

Twist the process of turning a part of the billet into a certain Angle.

6.切割 分割坯料或切除料头的锻造工序。

The forging process of cutting down the raw material or cutting head.

 

 

二、模锻

Second, the die forging

模锻全称为模型锻造，将加热后的坯料放置在固定于模锻设备上的锻模内锻造成形的。

The die forging is known as the forging of the model, which is placed in the forging of the forging machine which is fixed on the die forging equipment.

1.模锻的基本工序 模锻工艺过程：下料、加热、预锻、终锻、冲连皮、切边、调质、喷丸。常用工艺有镦粗、拔长，折弯、冲孔、成型。

The basic process of die forging: material, heating, pre-forging, finishing, finishing, cutting, trimming and blasting. The common technique is to upset, pull, bend, punch and form.

2.常用模锻设备 常用模锻设备有模锻锤、热模锻压力机、平锻机和摩擦压力机等。

The commonly used die forging equipment has die forging hammer, hot die forging press, flat forging machine and friction press.

通俗地讲，锻造法兰质量更好，一般是通过模锻生产，晶体组织细密，强度高，当然价格也贵一些。

Generally speaking, the forging flange is of better quality, usually through die forging, the crystal structure is fine, the strength is high, and of course the price is more expensive.

无论是铸造法兰还是锻造法兰都属于法兰常用制造方法，看需要使用的部件的强度要求，如果要求不高，还可以选用车削制法兰。

In both the casting flange forging flange belong to flange manufacturing methods, see need to use the strength of the parts requirement, if the request is not high, also can choose flange turning system.