What is the production process of forged flanges

The forging flange process generally consists of the following steps: selecting high-quality steel billets, heating, forming, and cooling after forging. Forging methods include free forging, die forging, and mold forging. Different forging methods are selected based on the size of the forging and the production batch.

Free forging flanges have low productivity and large machining allowances, but the tools are simple and versatile, so they are widely used for single-piece and small-batch production of flanges with relatively simple shapes. Free forging equipment includes air hammers, steam-air hammers, and hydraulic presses, suitable for the production of small, medium, and large forgings, respectively. Die forging has high productivity, simple operation, and is easily mechanized and automated. Die forgings have high dimensional accuracy, small machining allowances, and a more reasonable fiber structure distribution, which can further improve the service life of the parts.

The basic steps of free forging flanges: In free forging flanges, the shape of the forging is gradually formed from the billet through a series of basic deformation processes. The basic processes for free forging flanges include upsetting, drawing, punching, bending, and cutting.

1. Upsetting: Upsetting is the process of forging the original billet axially, reducing its height, and increasing its cross-section. This process is commonly used for forging gear blanks and other disc-shaped forgings. Upsetting is divided into full upsetting and partial upsetting.

2. Drawing: Drawing is a forging flange process that increases the length of the billet and reduces its cross-section. It is usually used to produce shaft blanks, such as lathe spindles and connecting rods.

3. Punching: Punching flanges are forging flanges where a punch is used to punch through or through holes in the billet.

4. Bending: Bending flanges are forging flanges where the billet is bent into a certain angle or shape.

5. Twisting flanges: Twisting flanges are forging flanges where one part of the billet is rotated relative to another part by a certain angle.

6. Cutting: Cutting flanges is forging flanges where the billet is divided, or the blank head is removed.