... 21 04 2022 23 04 2022 19 05 2022 laser forming metal foam fatigue fracture numerical simulation advanced materials and processing laser processes modeling and simulation nontraditional manufacturing processes sheet and tube metal forming National Science...

... cut perpendicular to the scan path at (a) D = 4 mm and v = 30 mm/s and (b) D = 12 mm and v = 10 mm/s. The laser was scanned into the page. The cross sections look very similar to those obtained in 2D laser forming [5]. Numerical simulations confirmed the aforementioned findings. Figures 14...

... on stamped parts Vickers hardness (HV1) of six positions on stamped parts The experimental and numerical simulation investigation on formability and strengthening of 7075 aluminum alloy sheets in hot forming–quenching integrated process has been discussed in this paper. Compound dies were...

... ), pp. 243 – 257 . 10.1007/s12289-011-1036-9 Contorno , D. , Filice , L. , Fratini , L. , and Micari , F. , 2006 , “ Forming of Aluminum Foam Sandwich Panels: Numerical Simulations and Experimental Tests ,” J. Mater. Process. Technol. , 177 ( 1–3 ), pp. 364 – 367 . 10.1016...

... in defect-free welds. Then as speed increases, the first signs of defects are noticed (marginal group). The bad group includes all experiments with serious surface defects and porosity. The group labeled “for simulation” is used for numerical simulation using the predictive models developed in the authors...

... phenomenon. The numerical studies show that the decrease in the extrusion force during an air bubble release depends on the volume of the air bubble. ceramic paste extrusion numerical simulation In the Part 1 paper, a dynamic extrusion force constitutive model was developed to describe...

... to suddenly drop due to the change of paste volume in the nozzle, is analyzed based on the developed constitutive model. ceramic paste extrusion numerical simulation non-Newtonian flow dynamic modeling Because of their high heat resistance and hardness, ceramic materials are widely used...

... in multipass multilayer weld-based rapid prototyping are investigated using numerical simulation. Meanwhile the single-layer weld-based rapid prototyping experiment is carried out, and the residual stresses are measured in the blind-hole method. The variation trend of calculated residual stresses agrees...

... shapes. The numerical simulation results were compared with the experimental observations performed on a mild steel sheet using a fibre laser and the results are in good agreement in terms of weld bead cross-sectional profile and strength. laser welding FEM CFD mild steel numerical simulation...

... results reduce from 5924 mm to 199 mm, and the simulation springback rates with filler reduce from 0.92% to 0.15%. It is proved that high geometric accuracy of the integral panels can be obtained by using filling roll bending process. integral panel filler roll bending numerical simulation...

... 2012 10 09 2012 copper alloys numerical simulation thermomechanical processing extrusion tube eccentricity Copper tube manufacturers are having an increased interest in optimizing the copper tube manufacturing process due to competition from alternative materials. Polyvinyl...

... forces on the flow pattern. Numerical simulation of the flow in the die cavity is carried out for the liquid phase using a commercial computational fluid dynamics (CFD) code ( FLOW-3D ) based on the solution algorithm-volume of fluid (SOLA-VOF) approach to solve the coupling between the momentum and mass...

... between fore and rear torches is the key effective factor of angular distortions in DSDAW, its effects are not clear on the stress and angular distortions. In this study, numerical simulation is used to predict the transient temperature and welding distortion and stress with different arc distances...

... temperature distribution inside the molding machine. In this research, an integrated numerical simulation scheme was developed to predict curve change in molded glass aspherical lenses. The geometrical deviation in the final lens shape was analyzed using both an experimental approach and a numerical...

... leading to unsustainable computing time and unstable numerical analysis. In this paper, surface model based modeling and numerical simulation of gas-assisted injection molding are proposed. By taking the influence of gas penetration on melt flow as boundary conditions of the melt-filling region, a hybrid...

... approaches to FSW modeling under some circumstances. 18 11 2007 10 11 2008 29 12 2008 friction welding heat transfer numerical analysis friction stir welding quasisteady modeling numerical simulation FSW, one of the more recent advancements in welding techniques, has...

... a particular description of the ears’ part by modal decomposition and then simulating several blank shapes and sizes generated by discrete cosine transformation (DCT). The use of a numerical simulation for the forming operation and the design of an experiment technique allow mathematical links between the ears...

...Huamin Zhou; GuoDong Xi; Dequn Li The accurate prediction of residual stresses and shrinkage of the formed picture tube panel is important to achieve high quality and precision of the final product. In this paper, the numerical simulation of shrinkage of molded panels was carried out...

... directly for this process. The numerical simulation results are compared with the experimental data using prototyped coaxial nozzles. The results are found to match and then validate the simulation. This study shows that the particle concentration mode is influenced significantly by nozzle geometries...