Effects of Super-Imposed, Low Frequency Vibrations on Drilling Processes

9713865 Chandrasekar基于低频振动钻探的初步实验结果，该项目将全面探索振动运动叠加在钻探上时发生的潜在现象。我们将探讨这种振动对硬质金属材料的影响，包括硬化钢、不锈钢和钛，以及包括铝和铅在内的软材料。实验将使用具有不同几何形状和由不同材料制成的钻头，并使用油型和水溶型润滑剂。调查将包括扭矩和推力、钻孔质量、钻头-切屑界面的摩擦以及所生产切屑的形态特征。对振动叠加钻削的研究可以为人们提供有关这一过程的基础知识，从而大大提高钻削的质量和生产率。研究结果也有助于了解其他振动叠加制造工艺。

9713865 Chandrasekar Based on the results of preliminary experiments on drilling with low-frequency vibrations, this project will fully explore the underlying phenomena that occur when vibratory motion is superimposed on drilling. The effect of this vibratory motion will be explored for hard metallic materials including hardened steel, stainless steel, and titanium, as well as for soft materials including aluminum and lead. Experiments will be conducted with drills having various geometries and made of different materials, and with lubricants of both oil and water soluble types. The investigation will include torque and thrust, hole quality, friction at the drill-chip interface, and the morphological characteristics of the chips produced. The study of vibration superimposed drilling could generate fundamental knowledge about this process and lead to substantial improvement in the quality and productivity of drilling. The research results could also help understand other vibration superimposed manufacturing processes.