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A kind of gh4169 alloy ring forging forming method

A GH4169, annular forging technology, applied in the field of forging hot processing, can solve the problems of affecting grain size, uncontrollable deformation, product scrapping, etc., and achieve the effect of improving product yield

Active Publication Date: 2019-06-28
SHAANXI HONGYUAN AVIATION FORGING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Due to the different requirements for grain size of GH4169 alloy forgings, the production fire times, deformation amount and temperature control requirements of forgings are different. If the amount is too large or too small, it will directly affect the grain size, making the product unable to meet the final requirements, causing the product to be scrapped and resulting in a great waste of resources

Method used

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Experimental program
Comparison scheme
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specific Embodiment

[0036] The first level of inner ring forgings described in the present invention, part size Material: GH4169, category Ⅱ, process regulations require blanking specifications: Weight: 30.7Kg. The overall performance index and grain size requirements of the forgings should meet the requirements of the xx-0504 standard (grain size requirements are grade 4).

[0037] The forging steps are detailed as follows:

[0038] first step: Put the batch material into the electric furnace at 890°C for 90 minutes, heat it to 1020°C for 60 minutes, and then upset the cake to (1 fire complete); (1 fire complete);

[0039] Step 2: Car inner hole to And chamfer R10 on the upper and lower end faces of the inner hole; sand and polish.

[0040] The third step: after the forging is put into the furnace at 890 ° C for 60 minutes, then the temperature is raised to 1010 ° C for 40 minutes (3 fires are completed); the end face is flattened to the barren shape size:

[0041] Step 4: Ream th...

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Abstract

The invention belongs to the field of forging heat machining, and relates to a forming method for making a GH4169 alloy annular forge piece meet the physicochemical test grain size requirement. In three links including disc upsetting and punching, flat end face horse expanding and chambering in the GH4169 alloy annular forge piece forming method, the deformation amount is controlled, wherein the disc upsetting and punching deformation is larger than the chambering deformation amount and larger than the flat end face horse expanding deformation amount. According to the GH4169 alloy annular forge piece forming method, through temperature control and forge piece production heating time control, particularly through control over link technology parameters including temperature, time and deformation amount control, the deformation amount of each heating time is strictly consistent with the grain size requirement, the product meets the final needed requirement, and the yield of the product is effectively increased.

Description

technical field [0001] The invention belongs to the field of forging thermal processing, and relates to a forming method of a GH4169 alloy annular forging conforming to the grain size of physical and chemical tests. Background technique [0002] GH4169 alloy is body-centered cubic Ni 3 Nb(γ”) Phase and Face Centered Cubic Ni 3 (Al,Ti,Nb)(γ') phase precipitation hardening nickel-chromium-iron based wrought superalloy. It has high yield strength in the range below 650 ° C, and has good thermal processing plasticity and oxidation resistance, radiation resistance, fatigue resistance, and excellent welding performance. And by changing the parameters of the hot deformation process, forgings with different grain sizes and different strengths can be obtained. [0003] Forgings of this alloy can be divided into three categories: standard industry, high-strength process, and direct aging process in terms of forging deformation. Among them, high-strength process and direct aging pro...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21J5/00B21J5/08B21J1/06
CPCB21J1/06B21J5/002B21J5/08
Inventor 姚彦军李鹏郝宏斌李明刘威
Owner SHAANXI HONGYUAN AVIATION FORGING
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