Design of freeform surface finish using burnishing assistance following electrochemical finishing

Abstract

This study discusses the performance assessment of the continuous burnishing processes following electrochemical finishing using a design, which incorporates a finish-tool that includes an electrode and a nonconductive burnishing-tool. One can expect to make an effective evaluation on the processing features and set up the complete data for processing parameters. In the future, it is also expected to spread a freeform surface finish instead of the conventional hand or machine polishing. In the experiment, a model toy missile is taken as a workpiece. The electrode is used with the continuous and pulsed direct current application. The burnishing-tool uses ceramic material and is connected with the electrode and axial feed. It was found that the finished effect of the finish-tool with convex features is better than mat of the concave features. Pulsing direct current can slightly improve the effect of electrochemical finishing. High rotational speeds produce a better finish for workpieces. This presents an effective and low-cost finishing process that includes the design of a finish-tool, which uses burnishing assistance, and follows electrochemical finishing after traditional machining makes the freeform surface of a workpiece smooth and bright.