[HTML][HTML] Physics based models for characterization of machining performance–A critical review

H Attia, A Sadek, Y Altintas, A Matsubara… - CIRP Journal of …, 2024 - Elsevier
This paper presents a comprehensive review of the concept of machinability by considering
the dynamic, tribological, and thermo-mechanical interactions encountered at the tool-chip …

[HTML][HTML] An adaptive smoothed particle hydrodynamics (SPH) scheme for efficient melt pool simulations in additive manufacturing

C Lüthi, M Afrasiabi, M Bambach - Computers & Mathematics with …, 2023 - Elsevier
Smoothed particle hydrodynamics (SPH) is a well-developed mesh-free method that has
proven highly efficient for mesoscopic additive manufacturing (AM) simulations …

[HTML][HTML] Multi-resolution SPH simulation of a laser powder bed fusion additive manufacturing process

M Afrasiabi, C Lüthi, M Bambach, K Wegener - Applied Sciences, 2021 - mdpi.com
This paper presents an efficient mesoscale simulation of a Laser Powder Bed Fusion (LPBF)
process using the Smoothed Particle Hydrodynamics (SPH) method. The efficiency lies in …

[HTML][HTML] Hybrid SPH-FEM solver for metal cutting simulations on the GPU including thermal contact modeling

N Zhang, H Klippel, M Afrasiabi, M Röthlin… - CIRP Journal of …, 2023 - Elsevier
This paper presents a hybrid Smoothed Particle Hydrodynamics (SPH)–Finite Element
Method (FEM) solver for metal cutting simulations on Graphics Processing Units (GPU). For …

[HTML][HTML] Physics-informed Bayesian machine learning for probabilistic inference and refinement of milling stability predictions

VOA Akbari, M Kuffa, K Wegener - CIRP Journal of Manufacturing Science …, 2023 - Elsevier
This paper proposes an industrial-friendly approach based on physics-informed Bayesian
machine learning for probabilistic inference and refinement of stability predictions in milling …

[HTML][HTML] Evolution of undeformed chip thickness and grinding forces in grinding of K4002 nickel-based superalloy using corundum abrasive wheels

CAO Yang, Z Biao, D Wenfeng, JIA Xiaofeng… - Chinese Journal of …, 2024 - Elsevier
The undeformed chip thickness and grinding force are key parameters for revealing the
material removal mechanism in the grinding process. However, they are difficult to be well …

[HTML][HTML] An improved thermal model for SPH metal cutting simulations on GPU

M Afrasiabi, H Klippel, M Röthlin, K Wegener - Applied Mathematical …, 2021 - Elsevier
This paper presents the first application of a higher-order Smoothed Particle Hydrodynamics
(SPH) method to the thermal modeling of metal cutting problems. With this application, the …

[HTML][HTML] A numerical-experimental study on orthogonal cutting of AISI 1045 steel and Ti6Al4V alloy: SPH and FEM modeling with newly identified friction coefficients

M Afrasiabi, J Saelzer, S Berger, I Iovkov, H Klippel… - Metals, 2021 - mdpi.com
Numerical simulation of metal cutting with rigorous experimental validation is a profitable
approach that facilitates process optimization and better productivity. In this work, we apply …

[HTML][HTML] GPU-accelerated meshfree simulations for parameter identification of a friction model in metal machining

M Afrasiabi, L Meier, M Röthlin, H Klippel… - International Journal of …, 2020 - Elsevier
In the analysis of metal machining processes using meshless methods, friction is usually
modeled (if at all) by Coulomb's law with a prescribed constant coefficient. Experimental …

Effect of process parameters on melt pool geometry in laser powder bed fusion of metals: a numerical investigation

M Afrasiabi, D Keller, C Lüthi, M Bambach, K Wegener - Procedia CIRP, 2022 - Elsevier
Numerical 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 …