3D laser-forming strategies for sheet metal by geometrical information

Kim, Ji-Tae; Na, S.J.

doi:10.1016/j.optlastec.2008.12.001

Cited by 44 publications

(13 citation statements)

References 8 publications

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“…In this path, five successive circles with radii of 5,9,13,17, and 21 mm are used and movement order of laser is from high-radius circle to low-radius circle [ Fig. Accordingly, for all the circles, the first, third, second, and then fourth quarters are, respectively, scanned.…”

Section: Discrete Heating Of Circular Sectionsmentioning

confidence: 99%

Experimental and numerical study of spiral scan paths on cap laser forming

Gollo

Nadi

Mehdi

et al. 2014

Journal of Laser Applications

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Numerical and experimental study of sheet metal hydroforming AIP Conf.An integrated approach to the design of tube hydroforming processes: artificial intelligence, numerical analysis and experimental investigation AIP Conf.Laser forming is a new technology in sheet metal forming process, which has different applications for the industries that have previously used large tools for this purpose. Important parameters for achieving the desirable shape in laser forming process are scan speed, laser power, and scan pattern type. In this paper, finite element method simulation was done to study effect of different scan path to obtain shape of cap from a circular plate. Then, results of different scan paths were compared with each other at same condition. Comparing radius, curvatures, and edge distortion for different scan paths showed that spiral paths produced better caps than circular ones owing to their continuity. The experiments were performed using parameters of full Fermat's scan path that obtained appropriate from simulations. Comparison between simulation and experimental results has shown good agreement. V C 2014 Laser Institute of America. [http://dx.

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Section: Discrete Heating Of Circular Sectionsmentioning

confidence: 99%

Experimental and numerical study of spiral scan paths on cap laser forming

Gollo

Nadi

Mehdi

et al. 2014

Journal of Laser Applications

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“…Laser scan paths are placed perpendicular to the principal minimum strain at any point. Kim and Na [27] discretized the surface to be formed into plane patches and calculated relative bending and shrinkage required among the patches. Next, they obtained laser power and scan speed required to impart the necessary bending and shrinkage among the patches from the prior prepared FEM database.…”

Section: Introductionmentioning

confidence: 99%

Investigation on laser forming of stainless steel sheets under coupling mechanism

Chakraborty

Maji

Racherla

et al. 2015

Optics & Laser Technology

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“…Different generalised approaches to form 3D non-developable surfaces were proposed by Edwardson et al (2005), Liu and Yao (2005), and Kim and Na (2009). Edwardson et al (2005) represented the surface to be formed as Bezier surface patches and used the gradient vectors to obtain an iterative forming strategy.…”

Section: Introductionmentioning

confidence: 99%

“…The laser power and scan speed required to fulfil the in-plane and out-ofplane strains requirements to form the desired surface are obtained from this database. Kim and Na (2009) discretised the target surface into plane patches and calculated relative bending and shrinkage required among the patches. Next, they obtained laser power and scan speed required to impart the necessary bending and shrinkage among the patches from the prior prepared FEM database.…”

Section: Introductionmentioning

confidence: 99%