Device for assisting forming of viscous medium of combustion chamber cap through ultrasonic vibration

Abstract

The invention discloses a device for assisting forming of a viscous medium of a combustion chamber cap hood through ultrasonic vibration. An ultrasonic vibration assisting assembly is arranged above a viscous medium forming assembly and used for assisting in providing ultrasonic vibration for the viscous medium forming assembly; under the vibration effect of the ultrasonic vibration auxiliary assembly, the viscous medium forming assembly can disperse the stress concentration effect of a viscous medium and a combustion chamber cap complex curved surface contact area in the plate blank machining forming process of the viscous medium forming assembly. The method has the beneficial effects that by introducing ultrasonic vibration in a certain direction, frequency and amplitude, the stress uniformity in the viscous medium forming process of the combustion chamber cap can be further improved, the defects such as wrinkles are reduced, and then the forming performance and forming quality of the cap are improved. And according to plate blanks of different sizes and forming targets, the forming quality can be optimal by regulating and controlling ultrasonic vibration process parameters. The device is simple in structure, easy to operate and good in stability.

Description

technical field [0001] The invention relates to the technical field of forming high-temperature alloy plates for aero-engines, in particular to a device for forming viscous media in combustion chamber caps assisted by ultrasonic vibration. Background technique [0002] The aero-engine combustion chamber cap is an important part of the aero-engine, which has high requirements on material strength, high temperature resistance, and corrosion resistance. Generally, GH536 superalloy is used. Due to the large size and complex shape and surface of the engine combustion chamber cap parts, and the high-temperature alloy material forming process is difficult, there are low processing accuracy, high forming difficulty, large internal processing stress, difficult to control defects, and easy instability and wrinkling , uneven deformation and other issues. Ultrasonic vibration is a new metal sheet-assisted forming technology that has emerged in recent years. During the forming process, ...

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Problems solved by technology

[0003] For this reason, the present invention provides a device for assisting the viscous medium forming of the combustor cap by ultrasonic vibration to overcome the stress concentration in the contact area between the viscous medium and the complex curved surface of the combustor cap during the viscous medium forming process of the existing aero-engine large-scale parts and other problems, a method and device for forming viscous medium of combustion chamber cap assisted by ultrasonic vibration are proposed

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