Electrode wobble technology of electro-spark deposition based on orthogonal tests

To investigate the electro-spark deposition process, orthogonal tests with electrode wobble and multi-pass multilayer continuous deposition experiments were designed and conducted, analyzing the influence of electrode wobble parameters on single-pass deposition layer formation and the effects of electrode wobble on deposition efficiency and material transfer efficiency in multi-pass multilayer continuous deposition. The results show that during longitudinal electrode movement, electrode wobble can increase the contact area between the electrode and workpiece, achieve uniform distribution of deposition points, and enhance both deposition efficiency and material transfer efficiency in electro-spark deposition. In single-pass deposition with electrode wobble, the wobble amplitude, wobble spacing, and movement speed significantly affect the surface morphology, average width, average fluctuation value, deposition efficiency, and material transfer efficiency of the single-pass deposition layer. The dominant factors influencing deposition efficiency and material transfer efficiency in descending order are movement speed, wobble spacing, and wobble amplitude. The main factors affecting average width are wobble amplitude, movement speed, and wobble spacing, while those influencing average fluctuation value are wobble spacing, movement speed, and wobble amplitude.