Method for producing GH4169 high-temperature alloy multiply laminate structure

A GH4169, superalloy technology, applied in the field of material processing, can solve the problem of inability to manufacture multi-layer structure GH4169 superalloy, and achieve the effect of shortening preparation time and strong practicability

Inactive Publication Date: 2009-04-22
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problem that the current SPF / DB method cannot manufacture multilayer structure GH4169 superalloy, and provide a method for manufacturing GH4169 superalloy multilayer plate structure

Method used

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  • Method for producing GH4169 high-temperature alloy multiply laminate structure
  • Method for producing GH4169 high-temperature alloy multiply laminate structure
  • Method for producing GH4169 high-temperature alloy multiply laminate structure

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specific Embodiment approach 1

[0014] Specific implementation mode one: see Figure 1 to Figure 7 Describe this embodiment, a method for manufacturing a GH4169 superalloy multilayer plate structure, and the steps for realizing the method include:

[0015] Step 1: Put the panel 1, bottom panel 3 and N core panels 2, which are all made of GH4169 superalloy, into an acetone solution with a purity of 99.9% (mass) or more and ultrasonically clean it for 1min to 5min, then use a stainless steel brush and sandpaper Polish the surfaces of panel 1, base plate 3 and N core plates 2 for 8 minutes to 20 minutes, and then put panel 1, base plate 3 and N core plates 2 into an acetone solution with a purity of 99.9% (mass) or more for 5 minutes to 20 minutes. 15min, N=1 or N=2K, K is a positive integer;

[0016] Step 2: Fix the panel 1, bottom plate 3 and N core plates 2 on the workpiece table, and use laser deep penetration welding to respectively install the panel 1, bottom plate 3 and N cores from the side of the pane...

specific Embodiment approach 2

[0026] Specific embodiment two: the difference between this embodiment and embodiment one is that in step one, the panel 1, the core plate 2 and the bottom plate 3 that are all made of GH4169 superalloy are put into the glass with a purity of more than 99.9% (mass) respectively. Ultrasonic cleaning in acetone solution for 2min to 3min, then use stainless steel brush and sandpaper to polish the surface of panel 1, core panel 2 and bottom panel 3 for 10min to 15min respectively, then put panel 1, core panel 2 and bottom panel 3 into % (mass) above the acetone solution for 10min to 15min, and other steps and technical parameters are the same as those in Embodiment 1.

specific Embodiment approach 3

[0027] Embodiment 3: The difference between this embodiment and Embodiment 1 is that in Step 4, the upper mold 7 and the lower mold 8 are provided with 1 to 3 vent holes, and other steps and technical parameters are the same as Embodiment 1.

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Abstract

The invention provides a method for manufacturing the GH4169 high-temperature alloy sandwich panel structure, which belongs to the field of material processing. The aim of the invention is to solve the problems in manufacturing the GH4169 high-temperature alloy with a multi-layer structure by SPF/DB. The method comprises the following steps: 1. the ultrasonic cleaning is performed; 2. by adopting the laser deep penetration welding, various workpieces are welded together; 3. by adopting the argon-arc welding, a sealed space is formed, and only a vent hole is reserved; 4. the welded workpieces are placed in a die; 5. the die is placed in a heating furnace, heated at a temperature of between 950 and 980 DEG C and subjected to heat preservation for 25 and 40 minutes; 6. the inert gas is filled in for the superplastic bulging treatment; and 7. the die is cooled down to the room temperature. In the invention, by adopting the laser connection/ superplastic bulging combined technique, the GH4169 high-temperature alloy sandwich panel structure is successfully manufactured; and by utilizing the quickness and the accuracy in the laser connection, the manufacturing time of the sandwich panel is shortened.

Description

technical field [0001] The invention relates to a method for manufacturing a GH4169 superalloy multilayer structure, in particular to a method for manufacturing a multilayer structure GH4169 superalloy by superplastic bulging combined with laser deep penetration welding, and belongs to the field of material processing. Background technique [0002] GH4169 superalloy is an age-hardening Ni-Cr-Fe-based deformed superalloy. At 650°C, the alloy has high strength, toughness, fatigue resistance and good comprehensive mechanical properties. The multilayer plate structure of the alloy has high strength. , high rigidity, and lightweight structure, it has broad application prospects in aerospace heat resistance and heat protection. Its basic structure has three layers and four layers. Usually, the multi-layer board structure is made by SPF / DB (super plastic bulging / diffusion bonding technology). GH4169 is difficult to diffuse and connect. Usually, the diffusion bonding temperature is ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K28/02B23K26/42B23K26/20B23K9/16C22F1/16B23K26/21B23K26/348B23K26/70
Inventor 张凯锋曲凤盛卢振
Owner HARBIN INST OF TECH
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