A Numerical and Experimental Study of Sheet Metal Bending by Pulsed Nd:Yag Laser with DOE Method

Gollo, M. Hosseinpour; Naeini, Hassan Moslemi; Liaghat, Gholamhossein; Jelvani, S.; Torkamany, M.J.

doi:10.4028/www.scientific.net/amr.83-86.1076

AMR

2009

DOI: 10.4028/www.scientific.net/amr.83-86.1076

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A Numerical and Experimental Study of Sheet Metal Bending by Pulsed Nd:Yag Laser with DOE Method

M. Hosseinpour Gollo

Hassan Moslemi Naeini

Gholamhossein Liaghat

et al.

Abstract: Metal forming by a laser source is an efficient and economical method for forming sheet metal into straight bend and doubly curved shape. It can be most useful in the automation of sheet metal forming. This paper presents an FEM model for three dimensional thermo-mechanical simulation of the laser forming. The aim of this simulation and experimental study is to identify the response related to deformation and characterize the effects of process parameters such as laser power, beam diameter, scans velocity and … Show more

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Temperature Monitoring during Laser Beam Forming of Steel Sheets

Akinlabi

2014

KEM

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Laser Beam Forming is a flexible manufacturing process with great promise for sheet and metal forming, hence, considered as a novel manufacturing method for forming and shaping of metallic components. Being a thermo-mechanical forming process that enables parts or components to be formed with external heat of a laser beam, it is important to monitor and measure the temperature during the laser forming process in order to ensure the integrity of the processed components. This study reports on the temperature monitoring and measurement during laser beam forming process of steel sheets. The experimental design followed the L-27 Taguchi Orthogonal Array. The temperature of nine sets of samples laser beamed formed at different process parameters were monitored using the thermocouple data logger. The temperature for all the components formed at the nine parameter windows were analysed during the process. Hence, it was observed that the measured temperature increases with the increasing line energy during the laser beam forming process.

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Temperature Monitoring during Laser Beam Forming of Steel Sheets

Akinlabi

2014

KEM

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Numerical simulation of laser bending of AISI 304 plate with a rectangular cut out

Paramasivan¹,

Das²,

Sundar³

et al. 2017

Int. J. Eng. Sci. Tech

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This paper presents investigation of laser bending of AISI 304 plate having a rectangular cut out at its middle via process modeling by finite element method and statistical techniques. The objective is to study the effects of process and geometric parameters on thermal and deformation fields. Correlations are developed, with satisfactory accuracy, to predict maximum temperature and bending angle in the form of second order equations using response surface methodology. Artificial Neural Network models are also developed to predict maximum temperature and bending angle. Results indicate that maximum temperature and bending angle increases with laser power and decreases with increase in scanning speed. Moreover, bending angle decreases with increase in cut out dimension along laser scanning path due to the reduced interaction time between the work piece and the laser beam. Predictions from regression models and neural network models are compared with simulation results and performance of both approaches are found to be satisfactory.

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A Numerical and Experimental Study of Sheet Metal Bending by Pulsed Nd:Yag Laser with DOE Method

Cited by 2 publications

References 3 publications

Temperature Monitoring during Laser Beam Forming of Steel Sheets

Temperature Monitoring during Laser Beam Forming of Steel Sheets

Numerical simulation of laser bending of AISI 304 plate with a rectangular cut out

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