The Hot Forging: Art of Plastic Deformation

Just witnessed a closed-die forging operation: In the hot plastic deformation stage, the high-temperature billet, under the nominal pressure of the forging press, follows the die cavity to achieve directional distribution of metal flow lines. The glowing workpiece undergoes equiaxed grain refinement under instantaneous load - this is the core process that enables strength-toughness matching for high-load components (e.g., transmission system connecting rods).

The precision of forging is never accidental:
• It relies on initial/finish forging temperature range control (to avoid overburning/work hardening);
• It depends on the precise matching of die cavity geometric tolerances and forging stock allowance;
• Most importantly, hot working flow lines positively enhance component service life - compared to casting, the continuity of fibrous microstructure in forgings improves fatigue resistance by over 30%.

It is a result of  machines' "hard power"  and a art of metal plastic deformation.