A progressive metallic surface micro-nano modification method, comprising the following steps: using a modification tool having a designable end to contact a contact substrate material, rotating the modification tool in a local region and compressing the material surface, presetting a processing parameter by means of 3D modeling software, and after the tool has processed the entire surface, the tool moving downward to the indented surface that was compressed previously. The process continues until the surface material is compressed to a pre-defined thickness, thereby achieving the goals of grain refinement and improving surface performance. By means of the present method, a workpiece having a complex shape can be flexibly and designably surface modified. The invention features the strengths of high bonding strength, no pollution, and low costs.
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