a model for the estimation of hardness of laser bent


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Analytical model for prediction of bend angle in laser

Jul 07, 2020 · The proposed model predicted the bend angle with an accuracy of 89.73% at 200 W, whereas the accuracy of prediction is found to be 83.47% at 400 W for a sheet of 1 mm thick. This discrepancy in prediction can be attributed to the strain hardening of laser-heated area An analytical model for estimating deformation in laser In 2006, Shen et al. [5] presented an analytical model to estimate the bending angle during the laser forming of a sheet. Plastic deformation is considered during both heating and cooling and is Resume Dr. Vikash KumarVikash Kumar and Uday S. Dixit, 2018, "A model for the estimation of hardness of laser bent strips", Optics & Laser Technology, Vol. 107, pp. 491-499. DOI: Sheet Metal Inspection & Reverse Engineering A sheet metal inspection and reverse engineering solution using the InspecVision Planar2D - the worlds fastest 2D measurement system. Manufacturing sheet metal parts can be particularly difficult. The production cost per component is very low compared with other industries such as metal machining. This drives down the resources available to the Analytical model to estimate angle formed by laser Request PDF Analytical model to estimate angle formed by laser In this paper, an analytical model to estimate the angle formed by a laser is established. In the proposed model, the angle An integrated FEM-ANN model for laser bending process Oct 16, 2015 · where w 0 (=0.05 mm) is the laser beam waist which is the minimum beam radius at focal point of the lens, (=10.6 m) is CO 2 laser beam wavelength and H is the stand-off distance, the distance between focal point to the worksheet surface. M 2 is the beam quality factor. The M 2 is equal to 1 for perfect Gaussian beam but in real practice it is always greater than 1. Computer simulation of steel quenching process using a The model is able to simulate the kinetics of phase transformation in laser bending that leads to reasonably accurate estimation of phase fractions and hardness of laser bent strips. View Show Investigation on laser forming of stainless steel sheets Aug 01, 2015 · The model used by McBride et al. predicts temperatures at various depths as a function of time during laser scanning as well as the subsequent cooling period. It considers the sheet to be infinitely large along the length and width and having finite thickness as shown in Fig. 3.It assumes a constant and uniform heat flux, H at the top surface for d / v time duration neglecting heat loss Microstructural characteristics, hardness and wear Jul 25, 2021 · Hardness variations in Fig. 7b suggest height and width of the laser-modified zone to be ~300350 m, consistent with that revealed in Fig. 3a. Further, the average hardness of the MZ is calculated to be 385 ± 17 HV while that of the HAZ is 442 ± 44 Investigation of Effect of Phase Transformations on The model is able to simulate the kinetics of phase transformation in laser bending that leads to reasonably accurate estimation of phase fractions and hardness of laser bent strips. View Show Magnetic-Force-Assisted Straightening of Bent Mild Steel Nov 02, 2017 · Laser scanning was carried out exactly along the bend line in width direction at a distance of 100 mm away from the free end of the strip. The magnet holder could be easily moved up and down through a slot for varying its vertical position as shown in Fig. 2.In the figure, for each configuration, the original bent strip is shown in the solid line and its position when the laser beam heats it Theoretical strength and rubber-like behaviour in micro Jul 08, 2019 · These PyC samples 23,24,25, with dimensions exceeding 100 m, exhibited a compressive strength or hardness of >1 GPa at a density of Bending of a single crystal thin foil of material with Oct 04, 2007 · The initial yield point for the model without long range and gradient hardness effects is the lowest of the six simulations at 2.73 MPa while the highest initial yield is for the model with a size parameter of a = 1 µm and a gradient hardness coefficient of . Of the models that include long range and/or gradient hardness effects, the lowest (PDF) Fatigue life of laser clad hardfacing alloys on AISI This higher hardness level is contributed In this study, the presence of artificial notch on the surface of by the presence of carbides in dendritic and inter dendritic struc- uncoated substrate and on the laser clad region of fatigue test ture (Figs. 8 and 10) as the result of higher content of strong car- specimen (Fig. 3) provide the crack

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