Forging method capable of efficiently, integrally and uniformly compacting deformation

Abstract

The invention relates to a forging method capable of efficiently, integrally and uniformly compacting deformation, and the forging method can uniformly refine compacting deformation and the structureof a large forged piece product. The forging method is characterized in that special upper and lower wide plates are adopted for upsetting and forging a forged piece, so that forging main deformationis completed; then, finishing forming is performed on upper and lower anvils; a special wide plate is utilized for integrally forging, so that forging permeability is greatly improved, and the problemthat forging deformation is uneven at positions such as each hammer head, and a joint of the hammer heads during upper and lower anvil forging is also overcome, and therefore, the inner part of the forged piece is forged thoroughly and compacted, and a uniform fine grain structure is obtained; upset electroslag ingots are mainly deformed on upper and lower wide plates, and integral once formationis performed until design dimensions at every pass in a wide plate forging process, and reduction is controlled to be 25%-40%; the electroslag ingots are integrally forged until deformed to the designed dimensions between upper and lower flat plates after being turned over by 90 degrees, and 700mm-wide upper and lower nails are adopted for forging and forming so as to conveniently erecting angles, so that the uneven forging deformation problem of the hammer head during main deformation is avoided, forging permeability is improved, anvil replacing times are reduced, forging time is saved by about 1 / 2, forging production efficiency is improved, production cost is reduced, and product quality stability is high.

Description

technical field [0001] The invention belongs to the technical field of forging, and relates to a high-efficiency overall uniform compaction deformation forging method which can realize the compaction deformation and the uniform refinement of the structure of large forging products. Background technique [0002] At present, the common forging method of the press is to use the upper flat anvil 2 and the lower flat anvil 3 to forge and deform the blank 1, but the large-scale forgings produced by this method have poor internal forgeability and uniformity of structure, and the production efficiency is low . The traditional forging production method of hydraulic press is as follows: the upper and lower hammer heads are used for forging deformation. During the forging process, due to the deformation between each hammer head and the inhomogeneity of handover and flip forging, the follow-up grain size and structure are uneven. At the same time, due to the anvil Due to the limited wi...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the deficiencies in the prior art and provide a method of upsetting and drawing forgings with upper and lower wide plates. The high-efficiency overall uniform compaction deformation forging method solves the problem of uneven forging deformation between the hammer heads when forging the upper and lower anvils, ensures uniform compaction deformation inside the forging, improves the pass rate of ultrasonic flaw detection, and obtains a uniform and fine metallographic structure. Forging and compacting the inside of the forging and obtaining a uniform fine-grained structure, it also greatly improves the forging production efficiency, reduces the overall production cost, and has high product quality stability

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