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Welding method and welding device for implementing welding method

A welding method and welding speed technology, which is applied in welding equipment, welding equipment, auxiliary welding equipment, etc., can solve the problems of setting pads and narrow space on the back, so as to improve the quality of welding seams and reduce the number of welding layers and welding passes , The effect of improving welding efficiency

Inactive Publication Date: 2018-01-12
ZOOMLION HEAVY IND CO LTD
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For long box-shaped parts, the space on the back is very narrow, and it is not even possible to install a liner on the back, resulting in the quality defects of the long box-shaped parts such as incomplete penetration and weld leakage on the back

Method used

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  • Welding method and welding device for implementing welding method
  • Welding method and welding device for implementing welding method
  • Welding method and welding device for implementing welding method

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Embodiment Construction

[0033] Embodiments of the invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0034] A welding method according to an embodiment of the present invention will be described below with reference to the accompanying drawings. Such as figure 1 and figure 2 As shown, the welding method according to the embodiment of the present invention includes the following steps:

[0035] Position the first workpiece 20 and the second workpiece 30 to be welded so that the surface to be welded is in a horizontal welding position;

[0036] providing a pad 70 to the back of the surfaces to be welded of the first workpiece 20 and the second workpiece 30;

[0037] A front heat source 40 and a rear heat source 50 are provided to form welds on the surfaces t...

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Abstract

The invention discloses a welding method and a welding device for implementing the welding method. The welding method comprises the following steps that a first workpiece and a second workpiece to bewelded are located, and the faces to be welded are located at the horizontal welding position; linings are provided for the back faces of the faces to be welded of the first workpiece and the second workpiece; a front heat source and a back heat source are provided so as to form a weld joint on the faces to be welded of the first workpiece and the second workpiece, wherein the energy density of the front heat source is larger than that of the back heat source, the linings are opposite to the front heat source and the back heat source, and the linings, the front heat source and the back heat source move in the identical directions. The welding method has the advantages of being high in welding efficiency, good in welding quality, low in welding difficulty and the like, and the one-sided welding and double-sided formation can be achieved.

Description

technical field [0001] The present invention relates to the field of welding, in particular to a welding method, and also to welding equipment for implementing the welding method. Background technique [0002] The existing welding method cannot realize single-sided welding and double-sided forming of the weld seam without setting a liner. In order to realize single-sided welding and double-sided forming of the weld, the pad can only be set on the back of the weld. However, disposing the liner has the disadvantages of high cost and low efficiency. [0003] When welding box-shaped parts, in order to ensure that the box-shaped parts can have sufficient bearing capacity, the process requires that the front and back of the box-shaped parts be well formed, and the root of the weld seam is completely penetrated. At present, when conventional gas shielded welding is used to weld box-shaped parts without a liner, the metal in the molten pool will flow under the action of gravity, a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K28/00B23K37/00
Inventor 谭星关勇王霄腾王莲芳
Owner ZOOMLION HEAVY IND CO LTD
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