Composite vibration drilling method suitable for CFRP/titanium (aluminum) alloy laminated material

A technology of laminated materials and compound vibration, which is applied in the direction of lathe tools, boring/drilling, drilling/drilling equipment, etc., to reduce material layering defects, reduce cutting heat damage, and reduce tool wear Effect

Active Publication Date: 2019-01-01
HENAN POLYTECHNIC UNIV
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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 (

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  • Composite vibration drilling method suitable for CFRP/titanium (aluminum) alloy laminated material
  • Composite vibration drilling method suitable for CFRP/titanium (aluminum) alloy laminated material

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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 a CFRP/titanium (aluminum) alloy laminated material. The method applies ultrasonic vibration and/or low frequency vibration toa tool and/or workpiece during drilling of the laminated material, and according to different drilled objects in a drilling process, different vibration modes are added to suppress processing defectsof all layers so as to obtain optimal drilling effect of the materials of all layers. The method controls a vibration device through a numerical control system so as to realize automatic operation ofthe high and low frequency composite vibration drilling process of the laminated material. The method can select the ultrasonic vibration and/or low frequency vibration processing according to processed objects so as to avoid the defect that a single vibration mode cannot take into account both in processing the carbon fiber reinforced polymer (CFRP) and titanium (aluminum) alloy laminated material.

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...

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Application Information

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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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