2017
DOI: 10.1016/j.jmapro.2017.09.021
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Heat affected zone in the laser-assisted milling of Inconel 718

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Cited by 59 publications
(21 citation statements)
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“…Firstly, it is usually difficult to heat up the cutting volume in a homogeneous manner. Secondly, the maximum cutting width or depth in LAMill are constrained by the laser spot diameter, which becomes a very significant impediment when the width of cut is bigger than the laser spot size; hence, not surprisingly, LAMill has usually been demonstrated only for small cutting widths [29][30][31][32] comparable with the spot size of the laser. In addition, the optics system has to be changed to adapt to different cutting widths or depths, which is always time consuming.…”
Section: Introductionmentioning
confidence: 99%
“…Firstly, it is usually difficult to heat up the cutting volume in a homogeneous manner. Secondly, the maximum cutting width or depth in LAMill are constrained by the laser spot diameter, which becomes a very significant impediment when the width of cut is bigger than the laser spot size; hence, not surprisingly, LAMill has usually been demonstrated only for small cutting widths [29][30][31][32] comparable with the spot size of the laser. In addition, the optics system has to be changed to adapt to different cutting widths or depths, which is always time consuming.…”
Section: Introductionmentioning
confidence: 99%
“…Apart from the experimental studies, during the last decades, studies including the finite element (FE) modeling of LAM processes were presented, focusing mainly on laser-assisted milling and laser-assisted turning with a view to act complementary to the experimental studies towards the study of fundamental thermo-mechanical phenomena and the optimization of LAM process. The majority of the presented models are related to laser-assisted milling and especially the effect of laser heating on the substrate, e.g., [26,49], whereas fewer works deal with the coupled thermo-mechanical problem, e.g., [21,50].…”
Section: Introductionmentioning
confidence: 99%
“…In their model they calculated emissivity and absorptivity based on experimental data and managed to predict HAZ under various process conditions. Although laser scanning is usually performed in a linear path in laser-assisted milling simulations, Pan et al [26] simulated a rotating laser scanning path for the laser scanning and absorption ratio was approximated based on the melting area prediction. In the work of Liu and Shi [21] the effect of laser beam preheating was calculated analytically and then considered as an initial temperature boundary condition for the machining process which was solved sequentially with the temperature field inserted in the cutting model after some time intervals.…”
Section: Introductionmentioning
confidence: 99%
“…The overall forward problem methodology of the residual stress prediction considering laser effect is summarized in Fig.1. The heat source is calculated according to the size of laser spot and the laser power, and temperature field after laser preheating is calculated based on the conduction within workpiece [13,14]. The geometry of milling tool is simplified as in orthogonal cutting at each instance, in order to predict the flow stress dependent on micro-structure evolution [15,16], followed by cutting forces [17] and machining temperature [18] predictions.…”
Section: Introductionmentioning
confidence: 99%