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A kind of gh141 alloy forging forming method

A forming method and forging technology, applied in the field of forging thermal processing, can solve problems such as resource waste, unsatisfactory products, and product scrapping, and achieve the effect of improving product yield

Active Publication Date: 2021-10-15
SHAANXI HONGYUAN AVIATION FORGING
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Problems solved by technology

[0003] Since GH141 alloy forgings have different requirements on the internal structure, the production parameter control requirements for forgings are different. If the production parameters are not well controlled, the change of each parameter will directly affect the internal structure of the forging, making the product unable to meet the final requirements. Requirements, resulting in product scrapping and a great waste of resources

Method used

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specific Embodiment

[0051] The first level of inner ring forgings described in the present invention, part size Material: GH141, 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).

[0052]The forging steps are detailed as follows:

[0053] 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);

[0054] Step 2: Car inner hole to And chamfer R10 on the upper and lower end faces of the inner hole; sand and polish.

[0055] Step 3: Put the forgings in the furnace at 890°C for 60 minutes, then raise the temperature to 1010°C for 40 minutes (3 fires are completed); expand the end face to the barren shape:

[0056] Step 4: Ream the hole in the furnace at 890°C for 50 ...

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Abstract

The invention belongs to the field of forging thermal processing, and relates to a method for forming a GH141 alloy forging. The method includes: heating the blank to a blank-making temperature of 1100°C to 1150°C and keeping it warm, and after the heat preservation is completed, upsetting the blank, wherein the deformation amount of the pier cake is the first deformation amount, and the first deformation amount is 40% to 50%; Heat the cake blank to the punching temperature and keep it warm. After the heat preservation is over, punch the cake blank. The forging fire times and deformation during the punching process are set according to the actual size of the forging; The ring is reamed to obtain a forging. The present invention makes the deformation of each firing time strictly consistent with the crystal grain requirements through temperature control, forging production fire control, especially the control of process parameters in each link, so that the product meets the final requirements and effectively improves the product yield.

Description

technical field [0001] The invention belongs to the field of forging thermal processing, and relates to a forming method of a GH141 alloy forging. Background technique [0002] GH141 is a precipitation-hardening nickel-based deformed superalloy, which has high tensile and durable creep strength and good oxidation resistance in the range of 650°C to 900°C, and is suitable for manufacturing. It requires high strength below 870°C and below 980°C. High-temperature parts of aviation and aerospace engines that require anti-oxidation. Due to its excellent comprehensive performance, it has been widely used in aviation, aerospace and other fields, and is currently one of the most widely used high-temperature alloys in foreign aero-engines. [0003] Since GH141 alloy forgings have different requirements on the internal structure, the production parameter control requirements for forgings are different. If the production parameters are not well controlled, the change of each parameter...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21K1/76B21J5/00B21J1/06B21J5/10
CPCB21J1/06B21J5/008B21J5/10B21K1/761
Inventor 姚彦军畅继荣胡维贤
Owner SHAANXI HONGYUAN AVIATION FORGING
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