A forging process of aviation compressor blade based on stainless steel

A technology of stainless steel and air compressors, applied in mechanical equipment, engine components, metal processing equipment, etc., can solve problems such as processing difficulties, reducing the mechanical properties of finished blades, destroying the continuity of metal streamlines, and the surface integrity of finished blades, achieving less Machining allowance, improving product qualification rate and consistency, and good consistency

Active Publication Date: 2020-07-03
无锡航亚科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The existing stainless steel aero-engine blade forging process is a common die forging process, which requires machining to remove the machining allowance on the airfoil profile, which is not only difficult to process, but also destroys the continuity of the metal streamline and the surface integrity of the finished blade The technical problem of reducing the mechanical properties of finished blades, the invention provides a forging process for aviation compressor blades based on stainless steel materials, which can realize the precision forging of stainless steel aeroengine blades, so that the airfoil size of blade forgings can be directly Reach the finished size without further machining, retain the continuity of the metal streamline, improve the mechanical properties, surface integrity and metallographic structure meet the design requirements

Method used

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  • A forging process of aviation compressor blade based on stainless steel
  • A forging process of aviation compressor blade based on stainless steel
  • A forging process of aviation compressor blade based on stainless steel

Examples

Experimental program
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Effect test

Embodiment 1

[0072] A forging process for an aviation compressor blade based on stainless steel, comprising the following steps:

[0073] Step 1, blanking, the stainless steel material is 5CrNiCu17-4, the diameter of the blanking bar is Φ31.75±0.1mm, and the weight is 150±2g;

[0074] Step 2. Surface cleaning, using steel sand shot blasting, GH120 purpose steel sand medium, for 30 minutes, to clean the surface of the blanking parts to make the surface clean, and remove the residual coolant and surface defects on the surface of the blanking parts;

[0075] Step 3. Spray the glass lubricant, put the bar into the oven, set the heating temperature to 100°C, and set the heating time to 90 minutes, then take out the bar from the oven, and spray the prepared glass lubricant solution evenly with a spray gun On the surface of the bar, the thickness of the coating is controlled at 0.03mm. Check that the color of the surface coating is uniform and that there is no leakage of the primary color of the ...

Embodiment 2

[0100] A forging process for an aviation compressor blade based on stainless steel, comprising the following steps:

[0101] Step 1, blanking, the stainless steel material is 5CrNiCu17-4, the diameter of the blanking bar is Φ31.75±0.1mm, and the weight is 150±2g;

[0102] Step 2. Surface cleaning, using steel sand shot blasting, GH120 purpose steel sand medium, for 30 minutes, to clean the surface of the blanking parts to make the surface clean, and remove the residual coolant and surface defects on the surface of the blanking parts;

[0103] Step 3. Spray the glass lubricant, put the bar into the oven, set the heating temperature to 150°C, and set the heating time to 60 minutes, then take out the bar from the oven, and spray the prepared glass lubricant solution evenly with a spray gun On the surface of the bar, the thickness of the coating is controlled at 0.04mm. Check that the color of the surface coating is uniform and that there is no leakage of the primary color of the ...

Embodiment 3

[0128] A forging process for an aviation compressor blade based on stainless steel, comprising the following steps:

[0129] Step 1, blanking, the stainless steel material is 5CrNiCu17-4, the diameter of the blanking bar is Φ31.75±0.1mm, and the weight is 150±2g;

[0130] Step 2. Surface cleaning, using steel sand shot blasting, GH120 purpose steel sand medium, for 30 minutes, to clean the surface of the blanking parts to make the surface clean, and remove the residual coolant and surface defects on the surface of the blanking parts;

[0131] Step 3. Spray the glass lubricant, put the bar into the oven, set the heating temperature to 200°C, and set the heating time to 30 minutes, then take out the bar from the oven, and spray the prepared glass lubricant solution evenly with a spray gun On the surface of the bar, the thickness of the coating is controlled at 0.05mm. Check that the color of the surface coating is uniform and that there is no leakage of the primary color of the ...

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Abstract

The invention provides a forging process of an aerial compressor blade based on a stainless steel material, and can solve the following problems: the existing stainless steel aerial engine blade forging process is the common die forging process; the machining allowance on a blade body profile needs to be removed by machining; processing is difficult; furthermore, the continuity of a metal flow line and the surface integrity of a finished blade can be destroyed; and the mechanical property of the finished blade is reduced. The forging process in the invention comprises blanking, surface cleaning, glass lubricant spraying, bar heating, extruding, surface cleaning, pre-forging and heating, pre-forging, surface cleaning, final forging and heating, final forging, surface cleaning, trimming, vibration finishing, torsion correcting, alkali washing, thermal treatment, vibration finishing and final inspection.

Description

technical field [0001] The invention relates to the field of forging processing of blades, in particular to a forging process of aviation compressor blades based on stainless steel materials. Background technique [0002] Modern stainless steel materials refer to alloy materials with high performance corrosion resistance. Its materials mainly contain iron, carbon, rare metals and other materials, and are used in harsh environments, showing strong corrosion resistance, formability, environmental compatibility, high strength, and high toughness. It is widely used in military industry, light industry, aerospace and other fields. The advantages of stainless steel materials are as follows: 1) Corrosion resistance, which is the most significant performance of stainless steel materials. Due to the optimization of the addition of chromium inside the material, the material has strong corrosion resistance and can block the oxidation reaction of ambient oxygen and materials. , so as ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21K3/04B21J5/00B21J3/00
CPCB21J3/00B21J5/002B21K3/04
Inventor 徐红芳周敏张仪杰卞喜明
Owner 无锡航亚科技股份有限公司
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