Forging method capable of avoiding general looseness of hollow part forged through continuous casting blank with small deformation amount

Abstract

The invention relates to a forging method capable of avoiding general looseness of a hollow part forged through a continuous casting blank with small deformation amount. Under the insufficient deformation amount, special upper flat and lower V anvil forging is adopted to replace upper and lower flat anvil forging, the stress state of the blank and the flowing direction of metal are changed, the metal deforming characteristics are changed, and the outer layer metal deforming amount is increased; the continuous casting blank is heated and then fed into an oil press machine, the oil press machineadopts an upper flat and lower V anvil for forging, a precision forging machine is adopted for forging forming, after forging, annealing, inspection, ultrasonic flaw detection and discharging are carried out, through the forging method, general looseness of hollow part products like a corrugated roller produced by the continuous casting blank is avoided, production efficiency is improved, comprehensive production cost is reduced, and the product quality stability is high.

Description

Technical field [0001] The invention belongs to the technical field of forging, and specifically relates to a method of replacing the upper and lower flat anvil forging with special upper and lower V anvils under the condition of insufficient deformation, changing the stress state of the blank and the flow direction of the metal, and changing the metal The deformation characteristics of the outer layer metal are increased, and the small deformation amount improves the generally loose forging method of continuous casting blank forging hollow parts. Background technique [0002] At present, the production habit of continuous casting billet forgings is to use upper and lower flat anvils forging. However, due to the poor internal compactness of continuous casting billet, and the small deformation of hydraulic press and large relative feed, the general looseness of forgings is extremely low. In order to improve the qualification rate, the upsetting process is increased in the producti...

AI Technical Summary

Problems solved by technology

[0003] The object of the present invention is to overcome the deficiencies in the prior art and provide a special upper flat and lower V anvil forging, which increases the deformation of the outer layer of the forging and relatively reduces the deformation of the core, which is beneficial to corrugating rolls. This kind of hollow product is generally loose and qualified, and greatly improves production efficiency and reduces production costs. The small deformation improves the forging method of continuous casting slab forging hollow parts that are generally loose. In the case of insufficient deformation, special upper flat, The lower V anvil forging replaces the upper and lower flat anvil forging, changes the stress state of the blank and the flow direction of the metal, changes the deformation characteristics of the metal, and increases the deformation of the outer layer of metal, so as to achieve the purpose of improving the general looseness of the forging.

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