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Bending laser irradiation apparatus and laser irradiation method

A technology of laser irradiation and bending processing, which is applied in the direction of laser welding equipment, metal processing equipment, manufacturing tools, etc., can solve the problems of low efficiency of laser irradiation processing, achieve the effect of reducing laser processing time and improving processing efficiency

Inactive Publication Date: 2005-08-03
FUJITSU LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, in order to produce the desired bending deformation of the workpiece, more laser energy than required is consumed, resulting in low processing efficiency of laser irradiation.

Method used

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  • Bending laser irradiation apparatus and laser irradiation method
  • Bending laser irradiation apparatus and laser irradiation method
  • Bending laser irradiation apparatus and laser irradiation method

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Embodiment Construction

[0028] Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[0029] image 3 A laser irradiation optical system 10 showing one embodiment of the present invention is shown. Figure 4 is used to use the image 3 The figure explaining the bending processing of the laser irradiation optical system 10.

[0030] Such as image 3 As shown, the laser irradiation optical system 10 of this embodiment has: a condensing optical unit 11, which condenses the incident laser light; and an anamorphic optical unit 12, which deforms the condensed laser light from the condensing optical unit 11 to have A laser with a slender and elliptical cross-sectional shape is used to irradiate the deformed laser light onto the workpiece. In the case of this embodiment, the condensing optical unit 11 is composed of a condensing lens, and the anamorphic optical unit 12 is composed of a cylindrical lens. The cylindrical lens 12 of this embodiment is an optic...

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Abstract

A laser irradiation apparatus and a laser irradiation method for bending a work by applying a laser beam. The laser irradiation apparatus includes a condenser optical unit for condensing incident laser beam, a deformation optical unit for deforming the condenser laser beam from the condenser optical unit into a deformed laser beam having a slender ellipitcal cross section and applying the deformed laser beam to a work, and a control unit for adjusting a relative position of the deformation optical unit and the work, so that the direction of the major axis of the deformed laser beam cross section is matched with a reference line on the work.

Description

technical field [0001] The present invention relates to a laser irradiation device and a laser irradiation method for performing bending processing by irradiating a workpiece such as a metal plate or a ceramic plate with laser light. Background technique [0002] Bending methods using laser light are known in which a workpiece such as a metal plate or a ceramic plate is bent using thermal contraction or thermal melting caused by laser light irradiated from a laser irradiation optical system. In this bending method, laser light is irradiated to the workpiece, and the workpiece is bent and deformed by stress generated by heat shrinkage, melting and solidification. [0003] figure 1 Shows a conventional laser converging optical system for bending processing. [0004] figure 1 An optical system 1 condenses laser light from a laser light source (not shown) to form a laser spot 4 on a workpiece. The laser irradiation shape of this laser irradiation optical system is dot-shaped...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21D11/20B23K26/073B23K26/08B23K26/352G11B5/60G11B21/21
CPCG11B21/21B23K26/0734B23K26/0736B21D11/20
Inventor 十仓史彦
Owner FUJITSU LTD