Aluminum honeycomb ultrasonic cutting and impacting integrated machining method

Abstract

The invention discloses an aluminum honeycomb ultrasonic cutting and impacting integrated machining method. The method comprises the following steps that an aluminum honeycomb to be processed is fixedto a machine tool clamp, an ultrasonic vibration device is installed on a machine tool main shaft, a circular slice knife with specific lower end face tiny patterns is installed on the ultrasonic vibration device, and the end face runout of the lower knife face of the circular slice knife is measured and adjusted. According to the needed aluminum honeycomb surface shape, a knife walking path is determined; the ultrasonic vibration device is started to enable the circular slice knife starts to be vibrated, the machine tool main shaft is started to enable the circular slice knife to rotate, andthe aluminum honeycomb to be processed is processed according to the knife walking path. Compared with an exiting high-speed milling machining method, cutting force is obviously reduced, the processed aluminum honeycomb workpiece is smaller in hole grid deformation, burrs, bruises and other machining defects are obviously reduced, and the surface evenness is high. The aluminum honeycomb surface which can be ultrasonically cut according to the needed surface shape, has the wall width increased and has the specific surface microtopography can be obtained, and later-period honeycomb adhesion isfacilitated.

Description

technical field [0001] The invention relates to a processing method, in particular to an integrated ultrasonic cutting and impact processing method of aluminum honeycomb. Background technique [0002] Aluminum honeycomb sandwich structure is an important part in the manufacture of satellite fairings, aircraft doors, floors and other components, and is widely used in the aerospace field. To make a honeycomb sandwich structure, it is first necessary to process the aluminum honeycomb to make it reach the designed curved surface shape; then the composite material skin or aluminum alloy plate skin with an adhesive film on the inner side is pasted on the honeycomb core material. The glue film is melted under the temperature, and the glue liquid is evenly contacted and bonded with the cell end faces and side walls of the aluminum honeycomb, and finally the glue liquid is cured, and the bonding is completed. The surface accuracy and micro-morphology of the aluminum honeycomb will a...

AI Technical Summary

Problems solved by technology

[0004] 1. The cutting force of the traditional milling method is large, resulting in large deformation of aluminum honeycomb with weak rigidity, which affects the processing accuracy;

[0005] 2. The traditional milling method has defects such as burrs and burrs on the surface of the honeycomb core, and even degumming, tearing, and poor processing quality, which affects the subsequent bonding quality;

[0006] 3. The small width of the honeycomb wall at the end face of the aluminum honeycomb results in a small bonding area and weak bonding strength when it is bonded to the skin

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