Forging factory forging parts after annealing hardness operation requirements

To ensure the quality of forgings, billet heating part should not be too long, only heating the bending part, forging parts with what material, and heating should be uniform.

Forgings need to be bent in more than one place, the general bending order is, first bend the end of the forging, followed by bending the part connected with the straight line, and then bend the rest of the part.

Bending, the outside of the billet to produce pulling shrinkage, the inside of the wrinkles, so that the cross-sectional area is reduced, the difference between forgings and castings, so in the billet will be bent part of the cross-sectional area of the appropriate increase and forging the convex shoulder, or choose a slightly larger cross-sectional area of the billet, bending and then pull the rest of the forging size. Forging is an important process in machine manufacturing, some of the important parts under great stress are mostly made by forging methods, such as: large generator spindle. The crankshaft for ships, the main beam of the aircraft, etc.