Forging and heat treatment process for aero-engine aluminium alloy vane

An aero-engine and aluminum alloy technology, which is applied in the direction of engine components, mechanical equipment, etc., can solve problems such as the failure of the tensile strength of aluminum alloy forgings to meet the technical requirements, meet the tensile strength at room temperature, avoid cracking problems, and reduce aging treatment The effect of temperature

Inactive Publication Date: 2014-03-26
WUXI TURBINE BLADE
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0005] However, the Al-Cu-Mn-Zr-V-Ti aluminum alloy is forged into aero-engine blade forgings within the recommended forging temperature range, and then the Al-Cu-Mn-Zr-V-Ti aluminum alloy is treated according to the currently recommended heat treatment system Alloy blades were heat treated, and the room temperature longitudinal and transverse tensile strength of the aluminum alloy forging failed to meet the technical requirements

Method used

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  • Forging and heat treatment process for aero-engine aluminium alloy vane

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Effect test

Embodiment 1

[0019] A forging and heat treatment process for aero-engine aluminum alloy blades. First, the Al-Cu-Mn-Zr-V-Ti aluminum alloy blade blank is heated for forging, and the aluminum alloy blade blank is placed in a heating furnace and heated to 460°C. For 5.5 hours, put the aluminum alloy blade blank into the press for die forging deformation, and the die forging deformation was controlled at 20% to obtain aluminum alloy blade forgings; then the obtained aluminum alloy blade forgings were heat treated, including quenching treatment in turn And aging treatment, in which the quenching treatment is to heat the aluminum alloy blade forgings in a quenching furnace to 535°C and hold for 3 hours, then water-cooled to room temperature, the water-cooling temperature is 71°C; the aging treatment is the quenched aluminum alloy The blade forging is placed in a heating furnace and heated to 165°C with the furnace and kept for 26 hours, then air-cooled to room temperature.

[0020] An aeroengine a...

Embodiment 2

[0022] An aeroengine aluminum alloy blade forging and heat treatment process. First, the Al-Cu-Mn-Zr-V-Ti aluminum alloy blade blank is heated for forging, and the aluminum alloy blade blank is placed in a heating furnace and heated to 455°C. After 4.5 hours, the aluminum alloy blade blank was put into the press for die forging deformation, and the die forging deformation was controlled at 60% to obtain aluminum alloy blade forgings; then the obtained aluminum alloy blade forgings were heat treated, including quenching treatment in turn And aging treatment, wherein the quenching treatment is to heat the aluminum alloy blade forgings in a quenching furnace to 541°C and hold for 3 hours, then water-cooled to room temperature, and the water-cooling temperature is 66°C; the aging treatment refers to the quenched aluminum alloy The blade forging is placed in a heating furnace and heated to 175°C with the furnace and kept for 26 hours, then air-cooled to room temperature.

[0023] An a...

Embodiment 3

[0025] An aeroengine aluminum alloy blade forging and heat treatment process. First, the Al-Cu-Mn-Zr-V-Ti aluminum alloy blade blank is heated for forging, and the aluminum alloy blade blank is placed in a heating furnace and heated to 465°C. After 5 hours, put the aluminum alloy blade blank into the press for die forging deformation, and the die forging deformation was controlled at 40% to obtain aluminum alloy blade forgings; then the obtained aluminum alloy blade forgings were heat treated, including quenching treatment in turn And aging treatment, in which the quenching treatment is to heat the aluminum alloy blade forgings in a quenching furnace to 529°C and hold for 3 hours, then water-cool to room temperature, and the water-cooling temperature is 60°C; the aging treatment is the quenched aluminum alloy The blade forging is placed in a heating furnace and heated to 170°C with the furnace and kept for 26 hours, then air-cooled to room temperature.

[0026] An aeroengine alum...

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Abstract

The invention provides a forging and heat treatment process for an aero-engine aluminium alloy vane. Through the adoption of the process, the mechanical property of an Al-Cu-Mn-Zr-V-Ti vane forge piece can effectively improved so as to meet the technical requirements of design and application. The process comprises the following steps: firstly, heating and forging the Al-Cu-Mn-Zr-V-Ti vane blank to obtain an aluminium alloy vane forge piece and then performing heat treatment on the aluminium alloy vane forge piece. The treatment process is characterized in that heating and forging operation comprise the following steps: heating the aluminium alloy vane blank to 455-465 DEG C in a heating furnace, performing heat preservation for 4.5-5.5 hours, and placing the aluminium alloy vane blank on a press machine for die forging deformation so as to obtain the aluminium alloy vane forge piece, wherein the die forging deformation is controlled to be 20-60%.

Description

Technical field [0001] The invention relates to the forging heat treatment process field of aluminum alloy blades of aeroengines, in particular to the forging heat treatment process field of Al-Cu-Mn-Zr-V-Ti aluminum alloy blades, in particular to the forging and heat treatment of aeroengine aluminum alloy blades Craft. Background technique [0002] As a typical lightweight metal material, aluminum alloy has excellent characteristics such as high strength, low density, high fracture toughness, and high stress corrosion resistance. It is widely used in the fields of machinery, chemical industry, automobile, construction, aviation and aerospace. [0003] Al-Cu-Mn-Zr-V-Ti aluminum alloy has the advantages of good welding performance, high strength, good heat resistance, and low crack tendency. Due to the above advantages, this material is used to make aero-engine fan blades. [0004] Al-Cu-Mn-Zr-V-Ti aluminum alloy is used as aluminum alloy blades for aero-engines. Generally, forgings ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22F1/04B21K3/04
Inventor 崔慧然黄玉亭陈瑞钢谢伟东李湘军
Owner WUXI TURBINE BLADE
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