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Forging flange production process


Forging process generally consists of the following processes, namely the selection of high-quality steel blanking, heating, forming, forging after cooling. Forging process free forging, forging and fetal membrane forging. Production, according to the quality of forgings, the number of production batches choose a different forging method.
Free forging low productivity, processing margin, but the tool is simple, versatility, it is widely used for forging a simple shape of the single, small batch forgings. Free forging equipment with air hammer, steam - air hammer and hydraulic press, respectively, for small, medium and large forgings production. Forging high productivity, easy operation, easy mechanization and automation. Die forgings with high dimensional accuracy, machining allowance is small, the distribution of fiber forgings more reasonable, can further improve the service life of the parts.
The basic process of free forging: free forging, the shape of forgings through some basic deformation process step forging the blank. Free forging the basic processes are upsetting, drawing, punching, bending and cutting off.
1. Upsetting Upsetting is the original billet forged in the axial direction, so that the height is reduced, the cross-section increases the operation. This procedure is commonly used for forging gear blanks and other disc-shaped forgings. Upsetting is divided into all the upsetting and forging rough two.
2. Long pull the length is to increase the length of the blank, cross-section forging process, usually used to produce shaft parts rough, such as lathe spindle, connecting rod.
3. Punching punch punched out of the blank or non-through-hole forging process.
4. Bending the blank into a certain angle or shape of the forging process.
5. Reverse the forging part of the blank relative to the other part of the rotation angle of the forging process.
6. Cutting or blanking billet cutting head forging process.
(2) forging
Forging the full name of the model forging, heating the blank placed in a forging die fixed on the forging device formed.
1. The basic process of forging Forging process: cutting, heating, pre-forging, final forging, red skin, trimming, quenching, shot peening. Common processes are upsetting, drawing, bending, punching, forming.
2. Common forging equipment Common forging equipment forging hammer, hot forging presses, flat forging machines and friction presses.
Generally speaking, forging flange quality is better, usually by forging production, crystal structure, high strength, of course, the price is more expensive.
Regardless of casting flange or forging flanges are flanges commonly used manufacturing methods, see the need to use the strength of the components required, if less demanding, but also the choice of turning flange.
(3) cut the flange
In the plate directly cut out the flange of the inner and outer diameter and thickness of the disc leaving the processing, and then the bolt hole and the water line processing. The flanges thus produced are called cut flanges and the maximum diameter of such flanges is limited to the width of the middle plate.
(4) rolling flange
Sliver cut with a plate and then rolled into a circle called the rolling process, used for the production of some large flanges. Winding success after welding, and then flatten, and then the waterline and bolt hole process of processing.