Using 2D Contours to Model Metal Sheets in Industrial Machining Processes

Moreno, Aitor; Segura, Álvaro; Arregui, Harbil; Posada, Jorge; Infante, Álvaro Ruíz de; Canto, Natxo

doi:10.1007/978-1-4471-6461-6_9

Cited by 2 publications

(1 citation statement)

References 3 publications

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“…The prototype integrates a physical module for the temperature computation and a geometry module that computes the plate cutting through time [23]. The physical module implements the GPU-based FFT algorithms presented in this manuscript for the temperature computation at interactive rates while the geometry module performs boolean operations as discussed in References [38,39].…”

Section: Interactive Simulator Prototypementioning

confidence: 99%

Fast Simulation of Laser Heating Processes on Thin Metal Plates with FFT Using CPU/GPU Hardware

et al. 2020

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In flexible manufacturing systems, fast feedback from simulation solutions is required for effective tool path planning and parameter optimization. In the particular sub-domain of laser heating/cutting of thin rectangular plates, current state-of-the-art methods include frequency-domain (spectral) analytic solutions that greatly reduce the required computational time in comparison to industry standard finite element based approaches. However, these spectral solutions have not been presented previously in terms of Fourier methods and Fast Fourier Transform (FFT) implementations. This manuscript presents four different schemes that translate the problem of laser heating of rectangular plates into equivalent FFT problems. The presented schemes make use of the FFT algorithm to reduce the computational time complexity of the problem from O ( M 2 N 2 ) to O ( M N log ( M N ) ) (with M × N being the discretization size of the plate). The test results show that the implemented schemes outperform previous non-FFT approaches both in CPU and GPU hardware, resulting in 100 × faster runs. Future work addresses thermal/stress analysis, non-rectangular geometries and non-linear interactions (such as material melting/ablation, convection and radiation heat transfer).

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Section: Interactive Simulator Prototypementioning

confidence: 99%

Fast Simulation of Laser Heating Processes on Thin Metal Plates with FFT Using CPU/GPU Hardware

et al. 2020

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Appraisal of open software for finite element simulation of 2D metal sheet laser cut

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Moreno

Ruiz-Salguero

et al. 2016

Int J Interact Des Manuf

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FEA simulation of thermal metal cutting is central to interactive design and manufacturing. It is therefore relevant to assess the applicability of FEA open software to simulate 2D heat transfer in metal sheet laser cuts. Application of open source code (e.g. FreeFem++, FEniCS, MOOSE) makes possible additional scenarios (e.g. parallel, CUDA, etc.), with lower costs. However, a precise assessment is required on the scenarios in which open software can be a sound alternative to a commercial one. This article contributes in this regard, by presenting a comparison of the aforementioned freeware FEM software for the simulation of heat transfer in thin (i.e. 2D) sheets, subject to a gliding laser point source. We use the commercial ABAQUS software as the reference to compare such open software. A convective linear thin sheet heat transfer model, with and without material removal is used. This article does not intend a full design of computer experiments. Our partial assessment shows that the thin sheet approximation turns to be adequate in terms of the relative error for linear alumina sheets. Under mesh resolutions better than 10 − 5 m , the open and reference software temperature pp 1-12

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Using 2D Contours to Model Metal Sheets in Industrial Machining Processes

Cited by 2 publications

References 3 publications

Fast Simulation of Laser Heating Processes on Thin Metal Plates with FFT Using CPU/GPU Hardware

Fast Simulation of Laser Heating Processes on Thin Metal Plates with FFT Using CPU/GPU Hardware

Appraisal of open software for finite element simulation of 2D metal sheet laser cut

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