Forging process of forged rings

Abstract

The invention discloses a forging process of forged rings, and the process comprises the following steps: 1) heating an ingot billet, wherein the metal content of the ingot billet is not less than that of two forged rings; 2) performing multiple upsetting and chamfering treatment on the ingot billet after heating, and then punching a center hole on the ingot billet; 3) reaming the center hole of the ingot billet through a reaming tool; and 4) cutting the ingot billet after reaming into the two forged rings. The two rings can be produced through one billet, thereby increasing the deformation quantity of the forged rings, particularly increasing the axial deformation quantity, and reducing the loss of axial performance during the shaping process; furthermore, as the volume of the ingot billet is increased, the temperature drop is slowed down; and the feeding quantity is reduced, the cot is reduced by about 20%, the forging speed is improved above 3 times, metal flow is improved, the process is optimized, the purpose of improving the three-directional performance of large forged rings, especially the axial performance is achieved, the axial performance is improved by 40-80% in comparison with national standard or American standard ASTMB247, and the axial performance is close to the tangential performance.

Description

technical field [0001] The invention relates to the technical field of forging, in particular to a forging process of a forging ring. Background technique [0002] Forging forming refers to applying external force to the metal to cause plastic deformation of the metal, changing the shape and size of the blank, improving its internal structure and mechanical properties, and obtaining a blank or part with a certain shape, size and performance. Forging forming and stamping forming are referred to as forging, which are part of the metal pressure processing production method. [0003] The traditional forging process of large forging rings: forging → punching → ring expansion, one blank for one ring, low forging efficiency, fast temperature drop, and difficult temperature guarantee; small forging ring deformation, especially small axial deformation, large forging The tangential, radial and axial performances of rings are very different. Compared with the national military standar...

AI Technical Summary

Problems solved by technology

[0003] The traditional forging process of large forging rings: forging → punching → ring expansion, one blank for one ring, low forging efficiency, fast temperature drop, and difficult temperature guarantee; small forging ring deformation, especially small axial deformation, large forging The three-way performance of ring tangential, radial and axial is very different. Compared with the national military standard or American standard ASTMB247, the margin is very small, especially the axial performance is much lower than the tangential performance

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