The Development Of Electrochemical Etching Machine Tool And Experiment System

Electrochemical etching machining is widely used to machining various kindsof hard-to-cut materials in aviation, aerospace, nuclear power and other industries.The electrochemical etching machine tool and experiment system has beensuccessfully developed in this project, based on the requirements of China Instituteof Atomic Energy.First, the technical theory of electrochemical etching has been analyzed andthe whole scheme of machine tool has been selected.Meanwhile, the machine toolhas been reformed based on numerical control system; Second, the structure ofcathode has been designed and optimized based on ANSYS. At the same time,thespecial fixture of cathode and working box have been designed.Then,the system ofelectrolytic has been designed.Furthermore, the structure of electrolytic cell hasbeen designed.The selection work of pump and temperature controller has beenfinished. Finally, the electrochemical etching machine tool and experiment systemhas been installed and tested，then the electrochemical etching experiment hasbeen carried out on the machine tool.The experiment results indicate that the surface of the emitter are processedeffectively and automatically by the electrochemical etching machinetool.Otherwise.The structure of machine tool which is running smoothly andorderly is stable. Technological equipment which provides high resistance tocorrosion can work safely and efficiently. The workpiece which is made ofingle-crystal molybdenum ubstrate has been etched selectively and the surface ofingle-crystal molybdenum ubstrate has pure topography.The technology ofelectrochemical etching supplies a new manufacture method to the cylindricalsurface of the thin-walled long tubes parts which are made of hard-to-cut materials.