Ultrasonic detection method for different technical stages of composite blade ring

A composite material and ultrasonic testing technology, which is applied in the analysis of solids using sonic/ultrasonic/infrasonic waves. It can solve the problems of non-destructive testing methods that have not been reported and are difficult to apply, achieve high signal-to-noise ratio, improve detection sensitivity, and avoid influencing factors. many effects

Active Publication Date: 2016-07-27
AVIC BEIJING INST OF AERONAUTICAL MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the detection of internal defects of titanium alloy forgings using traditional ultrasonic testing technology has been relatively mature, but for the overall leaf ring of fiber-reinforced titanium matrix composites with a more complex structure, especially the joint interfaces in the leaf ring, traditional ultrasonic testing methods it is difficult to apply
So far, no effective non-destructive testing method for fiber-reinforced titanium matrix composite integral leaf ring has been reported

Method used

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  • Ultrasonic detection method for different technical stages of composite blade ring
  • Ultrasonic detection method for different technical stages of composite blade ring
  • Ultrasonic detection method for different technical stages of composite blade ring

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] For attached figure 2 The silicon carbide fiber-reinforced titanium-based composite material TC17 integral leaf ring with an outer diameter of Φ600 mm is subjected to ultrasonic testing, and the pulse-echo type water immersion focused ultrasonic C-scan testing system used in the ultrasonic testing method includes an ultrasonic flaw detector (1) , water immersion focusing probe (2), inspected part (3), water tank (4), automatic scanner (5) and computer (6), see attached figure 1 .

[0027] The TC17 integral leaf ring is first made of titanium alloy inner ring (7) and outer ring (8) forgings by forging. ) is wound in the groove of the forging of the inner ring (7), and then the inner and outer rings are combined by hot isostatic pressing, and the metal / metal interface ( 10), and the detection of the metal / fiber interface (11) between the titanium alloy and the silicon carbide fiber filament (9), and finally finish machining to complete the production of the part.

[0...

Embodiment 2

[0048] For attached image 3 The silicon carbide fiber-reinforced titanium-based composite material TC17 double-shoulder ring with an outer diameter of Φ152 mm is subjected to ultrasonic testing. The pulse-echo type water immersion focused ultrasonic C-scan testing system used in the ultrasonic testing method includes an ultrasonic flaw detector (1), Water immersion focusing probe (2), inspected part (3), water tank (4), automatic scanner (5) and computer (6), see attached figure 1 .

[0049] The TC17 double-shoulder ring is first made of titanium alloy inner ring (7) and outer ring (8) forgings by forging. Wrapped in the groove of the forging of the inner ring (7), then hot isostatic pressing is used to combine the inner and outer rings into one, and the metal / metal interface (10 ), and the detection of the metal / fiber interface (11) between the titanium alloy and the silicon carbide fiber filament (9).

[0050] Using the method of the present invention to carry out ultras...

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Abstract

The invention relates to an ultrasonic detection method for different technical stages of a composite blade ring. A pulse echo type water-leaching focused ultrasound C scan method is adopted for performing ultrasonic detection on the whole blade ring. The ultrasonic detection method comprises the following steps: firstly, respectively performing water-leaching focused ultrasound C scan detection on interior defects of a titanium alloy inner ring and outer ring forge piece to be used for making the whole blade ring; detecting a joint interface in an integrally formed blade ring after being subjected to cellosilk winding and inner and outer ring hot isostatic pressure, namely with a 5-10MHz water-leaching focused probe, respectively performing C scan imaging on an interface signal and a bottom wave signal; and detecting the bonding quality of a metal/metal interface between the inner and outer rings of titanium alloy and a metal/fiber interface between titanium alloy and silicon carbide cellosilk. The ultrasonic detection method can be adopted for comprehensively controlling the inner quality and interface bonding quality of the whole blade ring of silicon carbide fiber enhanced Ti-based composite and has the advantages of strong operability, high detection sensitivity and direct detection result.

Description

technical field [0001] The invention relates to an ultrasonic testing method aimed at different process stages of composite material leaf rings, and belongs to the technical field of nondestructive testing. Background technique [0002] High thrust-to-weight ratio is an important indicator of future aero-engine performance. While improving engine reliability and maintainability, reducing the structural weight of the engine and improving the structural efficiency and gas temperature of the engine are important ways to increase the thrust-to-weight ratio. Among them, the development of overall, light Quantifying the engine structure is the main development trend at present. Due to the advantages of high strength, high service temperature, and good fatigue and creep resistance, fiber-reinforced metal matrix composites have been widely valued by aero-engine research institutions in various countries. Foreign countries have begun to develop fiber-reinforced titanium-based compos...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N29/04
CPCG01N29/04
Inventor 韩波杨平华林立志郭振伟高祥熙
Owner AVIC BEIJING INST OF AERONAUTICAL MATERIALS
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