超聲切割鋁蜂窩試驗(yàn)研究
[Abstract]:As a rapid development of processing technology, ultrasonic cutting technology is more and more widely used in the processing of composite materials, especially the weak stiffness composites represented by paper honeycomb materials. Ultrasonic cutting aluminum honeycomb experiments were carried out. The feasibility and advantages of ultrasonic cutting aluminum honeycomb were verified by analyzing the cutting force under different amplitudes and different feed speeds and the macroscopic and microscopic morphology of honeycomb workpiece after ultrasonic cutting. The experimental results show that there is no obvious damage to the macrostructure of honeycomb after ultrasonic cutting, and no obvious burr is produced. The microstructure of honeycomb can be improved by increasing the ultrasonic amplitude and feeding speed. The ultrasonic vibration of the cutting tool can significantly reduce the cutting force, and the cutting force decreases with the increase of the ultrasonic amplitude at the same feed speed, and the cutting force increases with the increase of the feed speed at the same ultrasonic amplitude, but the change is smaller. Through the stress analysis of ultrasonic cutting aluminum honeycomb, the influence of ultrasonic amplitude and feed velocity on the cutting force is discussed, and the results are compared with the experimental results. The internal causes of the change of ultrasonic cutting force are analyzed theoretically.
【作者單位】: 大連理工大學(xué)精密與特種加工教育部重點(diǎn)實(shí)驗(yàn)室;
【基金】:國(guó)家高技術(shù)研究發(fā)展計(jì)劃(863計(jì)劃,2015AA043402) 國(guó)家自然科學(xué)基金(51575085)資助項(xiàng)目
【分類號(hào)】:TG48
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