论文部分内容阅读
电化学光整加工过程中,伴随着金属阳极的溶解,阴极不断析出气泡,由于气泡表面会发生“极化”现象,因此电化学光整加工过程中,间隙内气泡的生长变化将会导致原间隙内流场、电流场分布发生畸变,从而会对加工工件的表面光泽度和加工精度产生一定程度的影响。根据相似原理,建立极间介质气泡相似模型,自制气泡发生与观测实验腔,并利用高速数字CCD对气泡运动进行实时采集,观察(10~50)V电压作用下,气泡的生长变化过程,得出气泡生长变化存在10V、30V、40V等几个阈值的结论,并结合相关的电化学光整加工理论分析气泡行为对光整加工过程的影响。
Electrochemical finishing process, along with the dissolution of the metal anode, the cathode continues to precipitate bubbles, the bubble surface will occur “polarization ” phenomenon, so the electrochemical finishing process, the bubble growth gap growth will be Resulting in the original gap flow field, the current field distribution distortion, which will have a certain degree of impact on the processing of the workpiece surface gloss and machining accuracy. According to the principle of similarity, the similarity model of the dielectric bubbles in the inter-electrode medium was established, the experimental cavity of the bubble generation and observation was made, and the bubble motion was collected in real time using a high-speed digital CCD. The growth and evolution of the bubbles under the voltage of (10-50) There are some thresholds such as 10V, 30V and 40V for the change of bubble growth, and the influence of bubble behavior on the finishing process is analyzed based on the related electro-optical finishing theory.