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Aluminum and aluminum alloy spiral pipe forming stirring friction welding method

A technology of friction stir and welding methods, which is applied in welding equipment, welding/welding/cutting articles, tubular articles, etc., can solve the problems that cannot meet the welding requirements of different types of aluminum alloys, achieve grain refinement, improve joint strength, and facilitate mechanized effect

Inactive Publication Date: 2013-08-14
姚雪飞
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In the spiral welded pipe production line, any traditional welding method such as fusion welding, resistance welding, gas welding, plasma arc welding, electron beam welding, vacuum diffusion welding, etc. cannot meet the needs of welding different types of aluminum alloys.

Method used

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  • Aluminum and aluminum alloy spiral pipe forming stirring friction welding method

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Embodiment Construction

[0017] The present invention will be described in further detail below, so that those skilled in the art can implement it with reference to the description. figure 1 It is a schematic diagram of a preferred embodiment of the friction stir welding method for forming aluminum and aluminum alloy spiral tubes according to the present invention. Such as figure 1 Shown, aluminum and aluminum alloy spiral tube forming friction stir welding method comprises the following steps:

[0018] Step 1.1, aluminum and aluminum alloy coils are rolled into tube blanks according to the angle of the predetermined helix;

[0019] In step 1.2, use the rotating rollers to position and align the pipe seams; for example, use two sets of pinch rollers 2, two sets of support rollers 3, and two sets of support rollers 4. Among them, the clamping roller is to prevent the pipe seam from opening and dislocation; the backup roller is to prevent the deformation of the tube blank formed before welding; the ba...

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Abstract

The invention discloses an aluminum and aluminum alloy spiral pipe forming stirring friction welding method which includes: coiling aluminum and aluminum alloy coiled materials into pipe billets according to preset angles; using rotation roll positioning to align pipe seams, and supporting formed pipe billets to avoid deformation; and using a stirring friction method for pipe seam welding. The method is widely applicable to welding of various grades of aluminum and aluminum alloy spiral pipes and high in efficiency.

Description

technical field [0001] The invention relates to the field of aluminum and aluminum alloy welding, in particular to a friction stir welding method for forming aluminum and aluminum alloy spiral tubes. Background technique [0002] Aluminum and aluminum alloy spiral tubes are made by rolling aluminum and aluminum alloy coils into tube blanks at a certain helical angle, and then welding the tube seams. Pipes with different diameters can be produced by continuous crimping and welding of coils of the same width, which are widely used in electrical, petrochemical and low-temperature storage tanks and other fields. [0003] Different grades of aluminum alloys have different welding characteristics. In the spiral welded pipe production line, any traditional welding method such as fusion welding, resistance welding, gas welding, plasma arc welding, electron beam welding, vacuum diffusion welding, etc. cannot meet the needs of welding different types of aluminum alloys. Therefore, t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P15/00B23K20/12B23K103/10B23K101/06
Inventor 姚雪飞
Owner 姚雪飞
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