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Deformation high-temperature alloy blade forged piece and precision forging method thereof

A technology for deforming superalloys and blades, used in metal extrusion, metal processing equipment, metal extrusion control equipment, etc., can solve problems such as the inability to meet the requirements of blade temperature bearing capacity, and achieve improved material utilization and uniform structure. state, the effect of optimizing the forging process

Active Publication Date: 2020-12-22
BEIJING CISRI GAONA TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The limit working temperature of the GH4169 alloy is 650°C, which cannot meet the requirements of the blade on the material's temperature bearing capacity.
At present, there is no report on the use of GH4169D alloy to manufacture aeroengine compressor blades

Method used

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  • Deformation high-temperature alloy blade forged piece and precision forging method thereof
  • Deformation high-temperature alloy blade forged piece and precision forging method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0063] A precision forging method for a deformed superalloy blade forging, comprising the following steps:

[0064] S1. Extrusion: Select qualified nickel-based superalloy GH4169D alloy bars, and carry out surface treatment on the GH4169D alloy bars. Specifically, use 120-mesh steel sand medium for shot blasting, and the shot blasting time is 15 minutes. For GH4169D alloy Bar surface cleaning;

[0065] Then put the GH4169D alloy bar into the oven, the heating temperature is 120°C, and the heating time is 60min, and then take out the bar from the oven and spray the glass lubricant to obtain a glass lubricant-coated bar with a coating thickness of 0.09±0.01mm material;

[0066] Then the alloy bar is heated in a heating furnace at a heating temperature of 1060°C and kept for 15 minutes, and then within 17 seconds, the alloy bar in the heating furnace is taken out from the heating furnace and transferred to a screw press for extrusion molding to obtain Extrusion, cooling, extrus...

Embodiment ２

[0079] A precision forging method for a deformed superalloy blade forging, carried out according to the method in Example 1, the difference is that:

[0080] S1. Extrusion: heat the bar in a heating furnace at a temperature of 950°C, keep it warm for 60 minutes, then take the alloy bar in the heating furnace out of the heating furnace and transfer it to a screw press within 17 seconds for extrusion Forming, the extrusion ratio is 2;

[0081] S2. Upsetting head: return the extruded part to the furnace to heat, the heating temperature is 910°C, and the heating time is 60 minutes, then quickly take out the extruded part from the heating furnace within 17 seconds to the screw press to hit the upsetting head to obtain the upsetting part, and cool it down;

[0082] S3. Pre-forging: return the heading piece to the furnace for heating, the heating temperature is 910°C, and the heating time is 60 minutes. Then take out the heading piece from the heating furnace and transfer it to the s...

Embodiment ３

[0085] A deformed superalloy blade forging and its precision forging method are carried out according to the method in Example 1, the difference is that:

[0086] S1. Extrusion: heat the bar in a heating furnace at a temperature of 1150°C, keep it warm for 8 minutes, then take out the alloy bar in the heating furnace from the heating furnace and transfer it to a screw press within 17 seconds for extrusion Forming, the extrusion ratio is 12;

[0087] S2. Upsetting head: return the extruded part to the furnace to heat, the heating temperature is 1060 ° C, and the heating time is 8 minutes, then quickly take out the extruded part from the heating furnace within 17 seconds to the screw press to hit the upsetting head to obtain the upsetting part, and cool down;

[0088] S3. Pre-forging: return the heading piece to the furnace for heating, the heating temperature is 1060°C, and the heating time is 6 minutes. Then take out the heading piece from the heating furnace and transfer it t...

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Abstract

The invention discloses a deformation high-temperature alloy blade forged piece and a precision forging method thereof. The precision forging method comprises the following steps that S1, a high-temperature alloy bar material is subjected to heat preservation for 8-60 min at the temperature of 950-1150 DEG C, and extrusion is conducted; S2, heating is conducted for 8-60 min at the temperature of 910-1060 DEG C, and head upsetting is conducted; S3, heating is conducted for 6-60 min at the temperature of 910-1060 DEG C, and pre-forging is conducted; and S4, heating is conducted for 4-60 min at the temperature of 910-1060 DEG C, finish forging is conducted, and a finish forged piece is obtained. The invention further discloses the deformation high-temperature alloy blade forged piece obtainedthrough the precision forging method. The precision forging method and the deformation high-temperature alloy blade forged piece have the beneficial effects that precision forging forming of the blade forged piece based on a novel nickel-based high-temperature alloy GH4169D material is achieved, an obtained GH4169D alloy blade can meet the requirements for the shape and size of an aero-engine blade and for the performance at the high temperature of 650 DEG C to 750 DEG C, and the requirement for the temperature bearing capacity of a blade material due to the fact that the performance and theuse requirement of an aero-engine are continuously improved is met.

Description

technical field [0001] The invention relates to the technical field of engine blade forging, more specifically, it relates to a deformed superalloy blade forging and a precision forging method thereof. Background technique [0002] In order to meet the requirements of high performance, high safety, high reliability and long life of aero-engines, aero-engine blades must have excellent metallurgical properties, accurate dimensions, and excellent surface integrity. Therefore, the manufacturing technology of compressor blades belongs to the manufacturing industry. and one of its complex techniques. Nickel-based alloys refer to a class of alloys that have comprehensive properties such as high strength and certain oxidation and corrosion resistance at high temperatures of 650-1000 ° C. Nickel-based superalloys are widely used in the preparation of aero-engine parts. However, another characteristic of nickel-based superalloy materials is that its structure is particularly sensitiv...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21J5/00B21J5/02B21C29/00B21C31/00B21J1/06C22C19/05B05D7/14B05D3/02
CPCB21J5/002B21J5/02B21C29/003B21C31/00B21J1/06C22C19/055B05D7/14B05D3/0218
Inventor 王民庆杜金辉邓群刘辉朱勤天胡日吴玉博王知颖
Owner BEIJING CISRI GAONA TECH
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