论文部分内容阅读
电化学加工法是除去两个深孔间的阻塞物的有效方法。例如两个深孔本该相交,但由于两个钻头的同心度不好而未能相交,这时可以用电化学加工法重新加工价格昂贵的铸件,而不必去把它挖通。电化学加工法产生的表面和过渡半径平滑。这种方法不会造成金相破坏,也不会留下不必要的后加工处理,而且加工简单,加工时间短,所以这种方法非常经济。加工时电极插在其中一个孔里,并使其末端靠近阻塞物(见图)。电解液从铜电极的芯子流入,通过电极末端旁的小孔流出。与此同时,在工件(作为阳极)和电极末端(电化学电路的阴极)之间加上直流电。
Electrochemical processing is an effective method to remove the blockage between two deep holes. For example, the two deep holes should intersect, but because of the poor concentricity of the two bits, they could not be intersected. Electrochemical processing could then be used to reprocess expensive castings without digging them up. The surface and transition radius produced by electrochemical machining are smooth. This method will not cause metallurgical damage, it will not leave unnecessary post-processing, and simple processing, processing time is short, so this method is very economical. The electrode is inserted into one of the holes while machining and has its ends near the blockage (see picture). Electrolyte flows from the core of the copper electrode and flows out through a small hole near the end of the electrode. In the meantime, a direct current is applied between the workpiece (as anode) and the end of the electrode (cathode of the electrochemical circuit).