Optimization of Ultrasonic-Assisted Grinding Conditions of Carbon Fiber Composite Surfaces

We reported the optimization of ultrasonic assisted grinding conditions of carbon fiber composite surfaces.The influence of the multi-variables, including but not limited to the spindle speed, feed rate, grinding depth and tool grain-size, on the grinding force and surface roughness was mathematically formulated with regression models, theoretically investigated with analysis of variance (ANOVA) and with response surface 3D map analysis, and experimentally evaluated.The preliminary results show that the strongly correlated grinding conditions all have a major impact.Optimized with Design Expert software, the grinding conditions included:a spindle speed of 4500 r/min, a feed rate of 8 mm/min, a grinding depth of 0.1 mm and a tool grain-size of 275 μm.We suggest that the optimized grinding conditions may be of some technological interest in machining carbon fiber composite materials.