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Effect of Process Parameters on Melt Pool Geometry in Laser Powder Bed Fusion of Metals: A Numerical Investigation
(2022)Procedia CIRP ~ 21st CIRP Conference on Electro Physical and Chemical Machining, ISEM XXINumerical simulation of melt pool behavior during laser powder bed fusion (LPBF) is essential to provide more effective control of the process and choose an optimal set of input parameters for defect-free fabrication. In this work, we use the smoothed particle hydrodynamics (SPH) method to investigate the impact of laser power and scan speed on the melt pool geometry in LPBF. The developments here follow the state-of-the-art numerical ...Conference Paper -
iMFREE: A versatile software tool for modelling machining processes with particle methods
(2023)Procedia CIRP ~ 19th CIRP Conference on Modeling of Machining OperationsThe current state-of-the-art for the simulation of machining process is the application of the FEM (finite element method). Nevertheless, the cost of FEM analyses for such problems is high due to their complex multi-physics nature, mesh regeneration issues, and small time-length scales. In contrast, particle methods are an alternative numerical approach well-suited for large deformations as in material's chip formation. In this work, the ...Conference Paper -
Study on the effect of wear models in tool wear simulation using hybrid SPH-FEM method
(2023)Procedia CIRP ~ 19th CIRP Conference on Modeling of Machining OperationsThe prediction of the tool wear progression using numerical methods has been widely studied in recent years, and various wear models considering different wear mechanisms have been implemented in the simulation work. Typically, these wear models take the physical fields such as contact pressure, sliding velocity and temperature at the tool-workpiece interface into account and are applied either individually or in combinations into the ...Conference Paper