Forging method and device capable of increasing flaw detection level

A horizontal, forging heating technology, applied in the field of material processing, to achieve the effect of improving the level of flaw detection, high durable strength, and good comprehensive performance

Inactive Publication Date: 2019-05-21
SHAANXI HONGYUAN AVIATION FORGING
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is: provide solution to the amount of deformation of the forging, for the superalloy die forging, set the pre-forging die to realize the control problem of the amount of deformation; make the final forging meet the flaw detection level requirements

Method used

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  • Forging method and device capable of increasing flaw detection level
  • Forging method and device capable of increasing flaw detection level
  • Forging method and device capable of increasing flaw detection level

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Experimental program
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Embodiment

[0040] 1. Pre-forging production:

[0041] Heating the bar stock, when the heating temperature reaches the preset head fire temperature range, keep it warm for 200min, adopt the head fire die to forge the heated bar stock, and obtain the pre-forging.

[0042] Preferably, the head fire temperature range is 1095°-1105°.

[0043] This forging process needs to control key parameters such as initial forging temperature, final forging temperature, and vertical dimension. Through the previous simulation calculation, the head fire mold is obtained as figure 1 It is shown that the minimum deformation of the pre-forging is in the range of 15%-20%, which can effectively improve the original grain of the blank and play a role in refining the grain.

[0044] 2. Final forging production:

[0045] After the pre-forging is produced, the hot material is returned to the furnace, and the pre-forging is heated. When the heating temperature reaches the preset temperature of the second fire, it ...

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Abstract

The invention belongs to the field of material machining, and particularly relates to a forging method and device capable of increasing the flaw detection level. The forging method comprises the stepsthat a rod is heated and subjected to heat preservation; the heated rod is forged through a primary fire die, and a pre-forged piece is obtained; the pre-forged piece is heated and subjected to secondary heat preservation; and the pre-forged piece subjected to secondary heat preservation is forged through a secondary fire die, and a final forged piece is obtained, wherein the deformation of the final forged piece to the rod is the sum of the deformation of the final forged piece to the pre-forged piece and the deformation of the pre-forged piece to the rod.

Description

technical field [0001] The invention belongs to the field of material processing, and in particular relates to a forging method and device for improving the level of flaw detection. Background technique [0002] GH698 is a high-temperature alloy material. GH698 is a nickel-based high-temperature alloy strengthened by elements such as aluminum, titanium, molybdenum, and niobium. It is developed by supplementary alloying on the basis of GH4033 alloy. Durable strength and good overall performance. This alloy is widely used in the manufacture of important load-bearing parts such as turbine disks, compressor disks, deflectors, and load-bearing rings of aero-engines, and its working temperature can reach 750-800°C. For forgings with high requirements for flaw detection and forgings that are not easy to repair after forming, different from the traditional production of forging forging methods, the control of the deformation process of forging is a difficult point in the production...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21J5/00B21J1/06
Inventor 苏灵锐秦卫东武洋斌蒲光姚彦军
Owner SHAANXI HONGYUAN AVIATION FORGING
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