Laser-tube welding

A technology of laser welding and laser head, which is applied in the direction of laser welding equipment, welding equipment, welding/welding/cutting items, etc., to achieve the effect of reducing the time for reprocessing

Active Publication Date: 2014-03-26
MAN ENERGY SOLUTIONS SE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The device itself is not suitable for creating small circular welding tracks

Method used

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  • Laser-tube welding
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Examples

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Embodiment Construction

[0104] exist figure 1 , 2a The exemplary embodiment of the device 1 according to the invention shown in and 2b is arranged in front of the pipe base 2 which is oriented vertically in the example shown, for carrying out the method according to the invention.

[0105] The device 1 has a laser head 3 with a guide lens 4 . The laser head 3 is designed to emit a laser welding beam 5 and is preferably a fiber laser, which is connected to a laser generator LG by means of an optical fiber 6 . By decoupling the laser generation from the laser optics, the laser head 3 can be implemented with a low weight. This enables less latency and precise movement.

[0106] Preferably, the laser head 3 is fixed, as in the illustrated embodiment, on a swivel device 7 ; it is set up to guide the laser head 3 on a circumferential line 8 , which runs parallel to the tube bottom surface 9 . Using the rotary device 7 , the laser head 3 can be moved in polar coordinates about the axis of the tube 10 , ...

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PUM

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Abstract

The invention relates to laser-tube welding, and a method and a device using laser welding to weld a tube of a tube bundle to a hole on a tube bottom are provided. Using the method and the device, time for preparing and executing corresponding tube welding is obviously reduced, and the device is obviously simplified.

Description

technical field [0001] The invention relates to a method and a device for welding tubes of a tube bundle into holes in a tube base by means of laser welding. Background technique [0002] An important step in the manufacture of tube bundle devices is the welding of the tubes into the tube base. For this reason, tungsten-inert gas (WIG) tube welding using circular orbital welding devices is by far the most widely used and most widely used welding method. Usually, the pipes are welded semi-automatically, that is to say the circular orbital welding device is positioned manually and fixed on the pipe or at the pipe bottom by means of a central expansion mandrel or a suitable device. Next, the actual welding process is carried out automatically with a circular orbital welding device. Fully automatic welding devices for welding pipes into pipe bottoms with automatic positioning of the welding device and subsequent pipe welding which also meet the requirements of the pressure dev...

Claims

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Application Information

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IPC IPC(8): B23K26/28B23K26/70B23K26/60
CPCB23K2203/04B21D53/06B23K2201/12B23K26/032B23K26/0884B21D39/06B23K26/421F28F9/18B23K26/32B23K26/067B23K26/103B23K2201/06B23K26/3206B23K26/28B23K26/60B23K2101/06B23K2101/12B23K2103/04B23K2103/50F28D7/16F28F1/006F28F9/182F28F2275/067
Inventor D.利贝诺W.克尼希C.霍夫曼
Owner MAN ENERGY SOLUTIONS SE
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