Laser hybrid welding method and system

A laser welding and laser technology, which is applied in laser welding equipment, welding equipment, metal processing equipment, etc., can solve the problems of high price, high power, and restrictions on the wide application of laser welding technology, and achieve the effect of reduced requirements and low cost

Active Publication Date: 2013-07-03
INTELUME LASER SYST
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Problems solved by technology

[0004] In some industrial applications, although ordinary laser welding equipment can be used, it requires extremely high power
For example, the welding of some motor cores requires a continuous laser beam of 2000W or more. The cost of the laser light source has a lot to do with the

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  • Laser hybrid welding method and system

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Embodiment Construction

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0022] In the embodiment of the present invention, the surface characteristics of the parts to be welded are changed by the laser of the first wavelength, and the effective absorption of the laser of the second wavelength by the parts to be welded is increased, so that a low-power laser beam can be used to complete high-power welding. The cost of manufacturing and using the laser welding equipment is reduced.

[0023] The invention provides a multiplex laser w...

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Abstract

The invention discloses a laser hybrid welding method which comprises steps as follows: a laser with a first wavelength, which is used for increasing the absorptivity of a workpiece to be welded to a laser with a second wavelength, is transmitted; the laser with the second wavelength is transmitted; and the laser with the first wavelength and the laser with the second wavelength are synthesized into one laser beam, and simultaneously, the laser beam is focalized on the workpiece to be welded so as to weld the workpiece to be welded. Continuous laser of the laser with the first wavelength is used for illuminating the workpiece to be welded to achieve preheat, and simultaneously, pulse laser of the laser with the second wavelength is used for welding, so that the effect and the speed of high-efficiency laser welding can be achieved, the construction cost is lower, and the requirement for various aspects of heat dissipation, power consumption and the like can be reduced. Besides, the invention further provides a laser hybrid welding device adopting the laser hybrid welding method.

Description

technical field [0001] The invention relates to the field of laser beam processing, in particular to a laser hybrid welding method and system. Background technique [0002] Laser welding is a non-contact welding method, which has the advantages of no filler, small thermal deformation, beautiful appearance, high precision, fast speed, etc. It is suitable for many occasions, especially the precision welding of small areas, so it is widely used In aerospace, military, automobile manufacturing, electronics, semiconductors, furniture manufacturing, communication devices and other fields. [0003] At present, common laser welding equipment mainly includes a laser light source, which is projected onto a focusing lens through a collimation device to focus the laser light, and a welding head is set near the focus point to realize laser welding. [0004] In some industrial applications, although ordinary laser welding equipment can be used, extremely high power is required. For exam...

Claims

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Application Information

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IPC IPC(8): B23K26/06B23K26/20B23K26/08B23K26/064B23K26/21
Inventor 李忠浩熊政军阎涤
Owner INTELUME LASER SYST
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