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Composite vibration drilling method for cfrp/titanium (aluminum) alloy laminated materials

A technology of laminated materials and compound vibration, applied in the direction of tools, boring/drilling, drilling/drilling equipment for lathes, etc., to reduce material delamination defects, reduce cutting thermal damage, and reduce tool wear Effect

Active Publication Date: 2022-01-18
HENAN POLYTECHNIC UNIV
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  • Abstract
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Problems solved by technology

[0006] The purpose of the present invention is to provide a composite vibration drilling method suitable for CFRP / titanium (aluminum) alloy laminated materials, aiming to solve the shortcomings of the existing laminated material drilling technology

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  • Composite vibration drilling method for cfrp/titanium (aluminum) alloy laminated materials

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Embodiment Construction

[0017] In order to make the purpose, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments, taking compound vibration drilling in which ultrasonic vibration is applied to the tool and low-frequency vibration is applied to the workpiece as an example. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention. In the actual operation process, different forms of compound vibration drilling methods can be realized by adjusting the object of vibration application, such as: (1) the compound vibration drilling method of applying ultrasonic vibration on the tool and applying low-frequency vibration on the workpiece; (2) ) The composite vibration drilling method of applying low-frequency vibration and ultrasonic vibration on the tool; (3) The composite vibr...

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Abstract

The invention provides a composite vibration drilling method suitable for CFRP / titanium (aluminum) alloy laminated materials. In this method, ultrasonic vibration and (or) low-frequency vibration are applied to the tool and (or) workpiece during the drilling process of laminated materials, and different vibration modes are added to suppress the vibration of each layer according to different drilling objects during the drilling process. Process imperfections to obtain optimum drilling results for each layer of material. The method controls the vibration device by a numerical control system, and can realize the automatic operation of the high-low frequency composite vibration drilling process of laminated materials. This method can select ultrasonic vibration and (or) low-frequency vibration processing methods according to the processing object, avoiding the defect that it is difficult to simultaneously process carbon fiber composite materials (CFRP) and titanium (aluminum) alloy laminated materials with a single vibration method.

Description

technical field [0001] The invention belongs to the technical field of precision machining, and in particular relates to a composite vibration drilling method suitable for CFRP / titanium (aluminum) alloy laminated materials. Background technique [0002] With the development of my country's aviation industry, the demand for high-performance aviation materials in the field of aircraft manufacturing is increasing. Aviation laminated material is a new type of aerospace material, which is a composite material composed of carbon fiber composite material (CFRP) and titanium (aluminum) alloy. Carbon fiber has the characteristics of high specific strength, high specific modulus, good fatigue resistance and excellent heat resistance. Titanium alloy is an important aerospace metal with high mechanical strength and light weight. [0003] In actual application, the aviation laminated composite materials are mainly riveted, so hole processing is required for the laminated composite mate...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23B35/00B23B41/00
CPCB23B35/00B23B41/00B23B2222/88B23B2222/04B23B2226/27
Inventor 焦锋戚嘉亮王晓博王东王晓亮毛祥善赵波
Owner HENAN POLYTECHNIC UNIV
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