2025 Volume 69 Issue 6 Pages 332-337
It is important to improve the machined surface or sub-surface quality of metals. This study was performed to develop a cutting technique capable of generating a localized compressive hydrostatic stress field around the cutting point to suppress excess plastic flow and improve the machined surface quality. A cutting tool equipped with a sliding jig to locally generate a compressive hydrostatic stress field around the cutting point was developed. Cutting experiments with pure aluminum were conducted, and the results were compared to conventional cutting. The results showed that the localized hydrostatic pressure-assisted cutting reduced plastic deformation, such as burr formation. To theoretically verify the effectiveness of the developed method, molecular dynamics simulations were also conducted. The results confirmed that the developed method was effective for reducing excess plastic deformation, such as burr formation, during cutting by applying localized hydrostatic pressure.
