Abstract:
In order to improve the surface forming quality and machining efficiency of composite materials and reduce tool wear, a two-dimensional rotary ultrasonic combined electro-machining (2DRUEM) technology with low electrical conductivity and low current density was proposed in this study. Additionally, a gap detection unit of the machining system was designed with the integration of grinding force and gap current, and the average errors and maximum errors of the model were 5.61% and 12.08%, respectively, which were better than single detection. Furthermore, the machining parameters were optimally selected via NSGA-II, and the maximum machining surface roughness error was 5.9%, the maximum material removal rate error was 5.5%, and the maximum edge accuracy error was 8.9%, as established through experiments.
摘要:
为了提高复合材料的表面成形质量和加工效率,减少刀具磨损,本研究提出了一种具有低电导率和低电流密度的二维旋转超声组合电加工(2DRUEM)技术。此外,结合磨削力和间隙电流,设计了加工系统的间隙检测单元,模型的平均误差和最大误差分别为5.61%和12.08%,分别,比单一检测更好。此外,通过NSGA-II优化选择加工参数,加工表面粗糙度最大误差为5.9%,最大材料去除率误差为5.5%,最大边缘精度误差为8.9%,通过实验确定。