Non-splash, low-deformation, high-quality and high-efficiency welding method for T-shaped joint of aluminum alloy sheet

A low deformation, aluminum alloy technology, applied in welding equipment, laser welding equipment, metal processing equipment, etc., to achieve the effect of less weight gain

Inactive Publication Date: 2011-01-26
HARBIN WELDING INST LTD
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0006] In order to solve the technical problems of high-quality, high-efficiency, and low-distortion welding of aluminum alloy thin-plate T-joints mentioned in the above technical b

Method used

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  • Non-splash, low-deformation, high-quality and high-efficiency welding method for T-shaped joint of aluminum alloy sheet
  • Non-splash, low-deformation, high-quality and high-efficiency welding method for T-shaped joint of aluminum alloy sheet
  • Non-splash, low-deformation, high-quality and high-efficiency welding method for T-shaped joint of aluminum alloy sheet

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[0026] The laser used in the test is a Trudisk6002 disk laser with a maximum rated power of 6kW and an output laser wavelength of 1.03μm. Through the control of the optical splitting system, two channels of laser with the same power can be output at the same time; the arc power supply is TPS4000CMT digitized and precise waveform control produced by Fonius Company in Austria Short-circuit transition welding power supply and wire feeder; the test materials used are 5083 and 6061 aluminum alloy sheets with a thickness of 2mm, among which, the specification of the rib plate is 300mm×60mm, and the specification of the base plate is 300mm×100mm; the welding wire used is φ1.2mm in diameter ER5087 aluminum alloy welding wire; remove oil and oxide film on the surface of the welded aluminum alloy test plate before welding. During the test, precise waveforms are used to control arc and laser recombination, and the specific welding specification parameters are as follows:

[0027] 1) 5083...

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Abstract

The invention discloses a non-splash, low-deformation, high-quality and high-efficiency welding method for a T-shaped joint of an aluminum alloy sheet, which belongs to the technical field of low-deformation, high-quality and high-efficiency welding of a light metal sheet. The method mainly comprises the following steps of: controlling a short-circuited transferred arc composite heat source to perform double side welding from both sides of a rib plate 1 by using two relatively independent laser-precision waveforms, wherein precision waveform control electric arc ensures that welding current is mainly maintained at a very small value when a molten dropping liquid bridge is fractured by tension by controlling current and voltage waveforms during molten drop short circuiting transfer so as to prevent welding splash when short circuiting transfer occurs; and controlling the distance between two laser beams 4 and 11 and a welding wire filling speed within certain ranges and reasonably matching included angles between arc welding guns 5 and 10 and a substrate 2 and included angles between the laser beams 4 and 11 and the substrate 2 so as to obtain the non-splash, low-deformation and low-weight gain T-shaped joint. The welding method of the invention is suitable for high-quality welding of T-shaped joints for aluminum alloy and other light metal sheets.

Description

Technical field: [0001] The patent of the present invention proposes a spatter-free, low-deformation, high-quality, high-efficiency welding method for T-joints of aluminum alloy sheets, which belongs to the technical field of low-deformation, high-quality, and high-efficiency welding of light metal sheets, and especially involves the combination of laser and precise waveform control of short-circuit transition arcs with little filling In the case of metal, high-efficiency, no spatter, low deformation, and low weight gain welding of aluminum alloy thin plate T-joints are realized. Background technique: [0002] High-quality, high-efficiency and low-distortion welding of thin-plate aluminum alloy T-joints has always been a technical problem in the field of welding. Traditional arc welding methods such as TIG wire-filled welding and MIG arc welding are difficult to achieve high-quality, high-efficiency, low heat input, and low deformation welding of aluminum alloy sheet T-joint...

Claims

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Application Information

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IPC IPC(8): B23K28/02B23K26/348
Inventor 林尚扬王旭友雷振王威黄瑞生吴艳明滕彬上官媛媛
Owner HARBIN WELDING INST LTD
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