20.500.12556/RUL-171230 Development of an innovative hydraulic press for incremental forming: machine and process evaluation using a hybrid two-step process Developing individual/personalised products requires flexible forming processes, which are limited by insufficient sheet thickness distribution and inadequate mechanical properties of the formed material. One group of forming processes with greater flexibility are incremental sheet metal forming (ISF) processes, the simplest representative of which is single-point incremental forming (SPIF). In order to improve the sheet thickness distribution, a pre-bulging process with subsequent SPIF is carried out in this study. Experimental results show that the integration of a pre-bulging step in a hybrid forming process leads to a more uniform final sheet thickness and reduces tip thinning compared to SPIF. This study focuses on the development of a hybrid machine based on a servo-hydraulic press to achieve sufficient forming accuracy with SPIF on difficult-to-form materials. SPIF is performed by increasing the flexibility of the hydraulic machine through the use of ball runner blocks mounted on the press bed, which allow movements in the horizontal plane. The developed hydraulic forming setup enables a significantly higher vertical force capacity, extending the application of SPIF to high-strength materials such as DP590 steel. This approach demonstrates a novel, scalable path for SPIF for industrially relevant materials and overcomes significant limitations of conventional CNC-based SPIF systems. hybrid two-step forming single-point incremental forming sheet metal bulging advanced hydraulic press concept high energy incremental forming machine dual-phase steel hibridno dvo-stopenjsko preoblikovanje enotočkovno inkrementalno preoblikovanje izbočevanje pločevine napredni koncept hidravlične stiskalnice visokoenergijski stroj za inkrementalno preoblikovanje dvofazno jeklo true false true Angleški jezik Slovenski jezik Članek v reviji 2025-08-20 12:05:11 2025-08-20 12:05:17 2025-08-21 04:02:32 0000-00-00 00:00:00 2025 0 0 18 str. Vol. 258, art. 114602 Oct. 2025 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 621.226:621.98 0264-1275 10.1016/j.matdes.2025.114602 246058755 Sevsek_..._Development.pdf Sevsek_..._Development.pdf 1 04982A44B8ED51ACE2B37253F616E1EF a939b9f22545063f18d47351da1e0a9d035665368191d2b91cbdd90b58d11ac8 fc289619-7dad-11f0-9328-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=214376 https://www.sciencedirect.com/science/article/pii/S0264127525010226 1 12f95021-7dad-11f0-9328-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=214375 Fakulteta za strojništvo 0 0 0