| 唐 军,陈小静,赵波.微织构超声振动铣削系统的研究[J].,2020,39(6):885-893 |
| 微织构超声振动铣削系统的研究 |
| A research on the micro texture ultrasonic vibration milling system |
| 投稿时间：2020-07-23 修订日期：2020-10-31 |
| 中文摘要: |
| 为了在金属切削过程中在7075铝合金表面形成稳定的微织构以提高其服役性能，提出一种微织构超声铣削加工工艺。为此，该文 首先基于运动合成原理获得了刀尖的运动轨迹特征和工件表面的织构形貌特征。然后，基于等效电路原理和传输矩阵法建立了超声铣削系统的频率方程，并应用牛顿迭代法获得了准确的数值解，通过ANSYS软件对建立的超声振动系统分别进行模态分析和谐响应分析，获得了具有微织构特征的纵扭复合超声铣削系统。最后，对加工制造出的微织构纵扭复合超声铣削系统进行振动测试、切削力测试和加工测试，结果表明：工件表面形成的“鱼鳞网纹”微观织构能够改变其润湿性能。 |
| 英文摘要: |
| In order to form stable micro texture on the surface of 7075 aluminum alloy and improve its services performance during metal cutting, the micro texture ultrasonic milling process is proposed. Therefore, based on the principle of motion synthesis, the characteristics of tool tip motion trajectory and the micro morphology of the work-piece surface were obtained. Then, based on the equivalent circuit principle and transmission matrix method, the frequency equation of the longitudinal-torsional composite ultrasonic milling system was established and the accurate numerical solution was obtained by the Newton iteration method，and the longitudinal-torsional composite vibration was realized. After that, the model analysis and dynamic characteristics analysis of ultrasonic vibration system were carried out by the finite element software ANSYS. Finally, the vibration test, cutting force test and the machining test of the micro texture longitudinal-torsional composite ultrasonic milling system were carried out. The results show that the fishscale texture formed on the surface of the workpiece could change its wettability. |
| DOI：10.11684/j.issn.1000-310X.2020.06.011 |
| 中文关键词: 微织构 纵扭复合振动 传输矩阵 有限元分析 |
| 英文关键词: Microtextue Longitudinal-torsional composite vibration Transfer matrix Finite element analysis |
| 基金项目:河南省高等学校重点科研项目(18A460029)；国家自然科学基金(51475148) |
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