Laser Bending of Thin Metal Plate

Misu, Tadashi; Sano, Yutaka; Miyazaki, Toshiyuki; Yoshioka, Shunro; Tokunaga, Tsuyoshi; Tanaka, Yoshihiro

doi:10.2493/jspe.71.1536

Cited by 5 publications

(2 citation statements)

References 5 publications

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“…Since it does not use dies or molds, it enables one to rapidly make prototypes and to decrease the cost and time for small-quantity production. There have been several works [1][2][3][4][5][6][7][8][9][10][11] on laser forming thus far. However, the objective of almost all of these works has been to elucidate the phenomenon of laser forming through experiments and through the FEM analysis of simple bending.…”

Section: Introductionmentioning

confidence: 99%

Die and Mold-Less Forming of Sheet Materials-Curved Surface Forming by Laser Irradiation

Aoyama,

Kishida

2012

AEJ

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Laser forming is expected to be able to form a desired shape out of sheet metal or sheet plastic without the use of a die or mold. Laser forming plastically deforms the material by generating local heat stresses, and enables low cost rapid prototype or small lot production, since it eliminates the need for dies and molds. Although there are many studies on laser forming, there are relatively few studies on forming curved surfaces. The objective of this paper is to develop a method for forming curved surfaces out of sheet material utilizing laser irradiation. To achieve this objective, a method to determine the scanning paths and the scanning condition for making curved surfaces by laser irradiation is proposed. The scanning paths are determined as the maximum and minimum curvature lines, and the scanning condition, which is a function of the scanning speed, is derived from basic experiment data. Since the maximum and minimum curvature lines are orthogonal, they do not influence each other during forming.

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Section: Introductionmentioning

confidence: 99%

Die and Mold-Less Forming of Sheet Materials-Curved Surface Forming by Laser Irradiation

Aoyama,

Kishida

2012

AEJ

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“…V. Frank et al (7) have discussed the size effect during foil welding. Additionally, Misu et al (8) investigated the deformation mechanism of laser bending.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Welding Properties of Metallic Foil with an Electron Beam

Yang

Ogawa

Fujioka

2011

JMMP

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For the fabrication of MEMS or devices in micro scale, joining of small parts is a critical issue. In this study, thin metal foils were welded using electron beam welding to investigate the weldability of the foils. In the welding of thin foils, the heat-affected zone and welding state are strongly dependent on the energy density of the irradiation beam, and size effects, such as heat capacity and stiffness, are important as the thickness of the material becomes small. Two materials, stainless steel and titanium with thickness values of 10 μm and 20 μm, were used as workpieces. An electron beam with several incident energies was applied, and the surfaces and cross-sections of the weld zones of the workpieces were examined. The experimental results show that the weldability of foil welding strongly depends on the material properties and the thickness of the workpieces, and it becomes more difficult to weld two overlapping foils with smaller thickness and lower thermal conductivity.

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Basic Study on Laser Forming CAM System for Sheet Material Forming Without Dies or Molds

Nakamura¹,

Ishihara²,

Aoyama³

et al. 2010

Int. J. Automation Technol.

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Dies and molds are generally used for press forming and injection molding. However, they are expensive and their production is time consuming, so they are not suitable for prototyping or low-volume production. Laser forming is an effective tool for prototyping and low-volume production because it enables one to form sheet material without dies or molds. Laser forming is the deformation process caused by the thermal stress generated in the sheet by laser irradiation. In this paper, a Laser Forming System is proposed for determining laser irradiation conditions for forming a required shape.

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Laser Bending of Thin Metal Plate

Cited by 5 publications

References 5 publications

Die and Mold-Less Forming of Sheet Materials-Curved Surface Forming by Laser Irradiation

Die and Mold-Less Forming of Sheet Materials-Curved Surface Forming by Laser Irradiation

Evaluation of Welding Properties of Metallic Foil with an Electron Beam

Basic Study on Laser Forming CAM System for Sheet Material Forming Without Dies or Molds

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