Different forging methods have different processes, among which the process of hot die forging is the longest, and the general sequence is: blanking of forging blank; Forging billet heating; Roll forging blank preparation; Die forging; Trimming; Punching; Correction; Intermediate inspection: inspect the size and surface defects of forgings; Heat treatment of forgings to eliminate forging stress and improve metal cutting performance; Cleaning is mainly to remove the oxide scale on the surface; Correction; Inspection: general forgings shall undergo appearance and hardness inspection, and important forgings shall undergo chemical composition analysis, mechanical properties, residual stress and other inspection and NDT.
Forging is a processing method that uses forging machinery to exert pressure on the metal blank to produce plastic deformation to obtain forgings with certain mechanical properties, certain shape and size. It is one of the two major components of forging (forging and stamping).
Forging can eliminate defects such as as-cast porosity produced in the smelting process of metal, optimize the microstructure. At the same time, because the complete metal flow line is preserved, the mechanical properties of forgings are generally better than those of castings of the same material. For the important parts with high load and severe working conditions in relevant machinery, forgings are mostly used except for the plates, profiles or weldments with simple shapes that can be rolled.
This article is from the original article of Dongguan Lianshengwang Forging Factory, focusing on aluminum alloy hot forging, cold forging and 3D forging technology. Free quotation for aluminum alloy forgings.