Different forging methods have different processes, wherein the hot forging process has the longest process, and the general sequence is: forging blanking; forging billet heating; roll forging stock; die forging; trimming; punching; Intermediate inspection, inspection of the dimensions and surface defects of forgings; heat treatment of forgings to eliminate forging stress and improve metal cutting performance; cleaning, mainly to remove surface oxide scale; correction; inspection, general forgings undergo appearance and hardness inspection, important forgings It is subject to chemical composition analysis, mechanical properties, residual stress and other tests and non-destructive testing.
Forging materials are mainly carbon steel and alloy steel of various compositions.
The forging materials are mainly carbon steel and alloy steel of various compositions, followed by aluminum, magnesium, copper, titanium and the like and alloys thereof. The raw state of the material is bar, ingot, metal powder and liquid metal. The ratio of the cross-sectional area of the metal before deformation to the cross-sectional area after deformation is called the forging ratio. Correct selection of forging ratio, reasonable heating temperature and holding time, reasonable initial forging temperature and final forging temperature, reasonable deformation and deformation speed have a great relationship to improve product quality and reduce cost.
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