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Dual-beam laser welding control method based on bilateral reference

A technology of laser welding and control method, applied in laser welding equipment, welding equipment, manufacturing tools, etc., can solve problems such as inapplicability

Active Publication Date: 2020-04-03
HUAZHONG UNIV OF SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This method can be applied to the case of equidistant parallel welds, but it cannot be applied to other non equidistant welds

Method used

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  • Dual-beam laser welding control method based on bilateral reference
  • Dual-beam laser welding control method based on bilateral reference
  • Dual-beam laser welding control method based on bilateral reference

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Embodiment Construction

[0047] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0048] Those skilled in the art will understand that unless otherwise stated, the singular forms "a", "an", "said" and "the" used herein may also include plural forms. It should be further understood that the word "comprising" used in the description of the present invention refers to the presence of said features, integers, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, Integers, steps, operations, elements, components, and / or groups thereof. It will be unders...

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Abstract

The invention provides a double-beam laser welding control method based on a bilateral benchmark. The double-beam laser welding control method comprises the steps that selection on a first welding seam chain and a second welding seam chain which conduct welding in pairs through a first laser beam and a second laser beam in a three-dimensional model of a to-be-welded workpiece is received, whereinthe first laser beam is used for welding the first welding seam chain, and the second laser beam is used for welding the second welding seam chain; first welding data of first welding points and second welding data of second welding points are acquired for each pair of the welding points on the first welding seam chain and the second welding seam chain, wherein each pair of the welding points comprise the first welding points on the first welding seam chain and the second welding points which are located on the second welding seam chain and correspond to the first welding points; the positionand the posture of a laser welding device used for controlling emitting of the first laser beam and the second laser beam are calculated according to the first welding data and the second welding data; and the laser welding device is controlled to weld the first welding seam chain and the second welding seam chain in pairs through the first laser beam and the second laser beam according to the position and the posture, determined for each pair of the welding points, of the laser welding device.

Description

technical field [0001] The present invention generally relates to the technical field of numerical control machining, and more specifically relates to a double-beam laser welding control method based on a double-side reference and a corresponding device for realizing the method, which can be applied to, for example, the welding of aerospace structural parts. Background technique [0002] Laser welding is a welding technology that uses a high-energy-density laser beam as a heat source, and has the characteristics of fast welding speed and high efficiency. Because the laser beam can be focused in a very small area, the heat-affected zone, metallographic change range, and heat conduction deformation are also small. At the same time, this technology also has many advantages such as a wide range of welding materials, no need to consider electrode pollution or damage, no need for a vacuum environment, and no influence of magnetic fields, so it has been widely used in industries su...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K26/044B23K26/24B23K26/70
CPCB23K26/044B23K26/24B23K26/702
Inventor 杨建中朱万强高嵩张成磊
Owner HUAZHONG UNIV OF SCI & TECH
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