PUMA publications for /tag/AdditiveManufacturing%20processdevelopment%20micromaterialprocessingTue May 14 16:33:35 CEST 2024Exceeding the Limits in Laser Materials Processing by Bridging Additive and Subtractive Manufacturing with Continuous Wave and Ultrashort Pulsed Lasers - Manufacturing of Parts with Undercuts2024ablation additivemanufacturing macromaterialprocessing micromaterialprocessing myown processdevelopment pulse selectivelasermeltingslm ultrashort Laser-based powder bed fusion of metals faces limitations in accuracy, surface quality, and minimal structure size resulting from the inherent melting process. To address these challenges, a novel approach integrating additive and subtractive laser processes at the layer level has been developed. This quasi-simultaneous manufacturing process enables the fabrication of small structures with high aspect ratios, including narrow slits below 50 μm in width. The implications of this advancement are promising, particularly in the fields of electric drives and fuel cells, where accuracy and freedom of design are crucial. In this work, the latest results of the production of narrow, inclined slits in components made of pure iron will be shown. Characteristics like groove-to-groove distance and groove width were analyzed, achieving successful production of continuous slits with varying inclination angles of up to 30° within the manufactured components.Tue May 14 16:33:35 CEST 2024Exceeding the Limits in Laser Materials Processing by Bridging Additive and Subtractive Manufacturing with Continuous Wave and Ultrashort Pulsed Lasers - Manufacturing of Parts with Undercuts2024myown ablation additivemanufacturing micromaterialprocessing ultrashort selectivelasermeltingslm macromaterialprocessing pulse processdevelopment Laser-based powder bed fusion of metals faces limitations in accuracy, surface quality, and minimal structure size resulting from the inherent melting process. To address these challenges, a novel approach integrating additive and subtractive laser processes at the layer level has been developed. This quasi-simultaneous manufacturing process enables the fabrication of small structures with high aspect ratios, including narrow slits below 50 μm in width. The implications of this advancement are promising, particularly in the fields of electric drives and fuel cells, where accuracy and freedom of design are crucial. In this work, the latest results of the production of narrow, inclined slits in components made of pure iron will be shown. Characteristics like groove-to-groove distance and groove width were analyzed, achieving successful production of continuous slits with varying inclination angles of up to 30° within the manufactured components.Tue May 07 23:03:16 CEST 2024Laser 3D Manufacturing XIMarchProc. SPIEExceeding the Limits in Laser Materials Processing by Bridging Additive and Subtractive Manufacturing with Continuous Wave and Ultrashort Pulsed Lasers - Manufacturing of Parts with Undercuts128762024Ablation AdditiveManufacturing MacroMaterialProcessing MicroMaterialProcessing ProcessDevelopment SLM SelectiveLaserMelting UltrashortPulse myown Laser-based powder bed fusion of metals faces limitations in accuracy, surface quality, and minimal structure size resulting from the inherent melting process. To address these challenges, a novel approach integrating additive and subtractive laser processes at the layer level has been developed. This quasi-simultaneous manufacturing process enables the fabrication of small structures with high aspect ratios, including narrow slits below 50 μm in width. The implications of this advancement are promising, particularly in the fields of electric drives and fuel cells, where accuracy and freedom of design are crucial. In this work, the latest results of the production of narrow, inclined slits in components made of pure iron will be shown. Characteristics like groove-to-groove distance and groove width were analyzed, achieving successful production of continuous slits with varying inclination angles of up to 30° within the manufactured components.Tue May 07 23:03:16 CEST 2024Laser 3D Manufacturing XIMarchProc. SPIEExceeding the Limits in Laser Materials Processing by Bridging Additive and Subtractive Manufacturing with Continuous Wave and Ultrashort Pulsed Lasers - Manufacturing of Parts with Undercuts128762024myown ProcessDevelopment SelectiveLaserMelting Ablation MicroMaterialProcessing SLM AdditiveManufacturing UltrashortPulse MacroMaterialProcessing Laser-based powder bed fusion of metals faces limitations in accuracy, surface quality, and minimal structure size resulting from the inherent melting process. To address these challenges, a novel approach integrating additive and subtractive laser processes at the layer level has been developed. This quasi-simultaneous manufacturing process enables the fabrication of small structures with high aspect ratios, including narrow slits below 50 μm in width. The implications of this advancement are promising, particularly in the fields of electric drives and fuel cells, where accuracy and freedom of design are crucial. In this work, the latest results of the production of narrow, inclined slits in components made of pure iron will be shown. Characteristics like groove-to-groove distance and groove width were analyzed, achieving successful production of continuous slits with varying inclination angles of up to 30° within the manufactured components.Tue Mar 22 17:08:32 CET 2022Proceedings of the Lasers in Manufacturing ConferenceJuneProc.LiMCombining LPBF and ultrafast laser processing to produce parts with deep microstructures2021Ablation AdditiveManufacturing Laser lpbf micromaterialprocessing myown processdevelopment ultrashortpulse Laser Powder Bed Fusion (LPBF) is limited in the achievable accuracy, surface quality and structure size due to its inherent melting process. The achievable structure sizes are mainly dependent on the focal diameter and the grain size of the powder. Smaller structures, especially deep and narrow slits with a width below 100 µm, are still a major challenge. Combining continuous wave and ultrashort pulsed lasers in the same optical system enables consecutive additive and subtractive processes. This results in a quasi-simultaneous manufacturing process, where the emerging part can be precisely machined with ultrafast laser ablation after each additively added layer. In the talk the system technology used for the superposition of the lasers as well as the results of the combined additive and subtractive processes for the fabrication of deep and narrow slits in stainless steel parts will be shown.AdditiveManufacturing processdevelopment micromaterialprocessingCommunity for tag(s) AdditiveManufacturing processdevelopment micromaterialprocessing