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Flux-cored wire for welding different materials, method for laser welding of different materials, and method for MIG welding of different materials

A dissimilar material, laser welding technology, used in laser welding equipment, welding/welding/cutting items, welding media, etc., can solve problems such as the decrease of peel strength of joints, improve peel strength, improve tensile shear strength and , the effect of improving peel strength

Active Publication Date: 2013-01-16
KOBE STEEL LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, even with the filler welding wire disclosed in Cited Document 2, the peel strength of the joint may decrease due to the difference in composition.

Method used

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  • Flux-cored wire for welding different materials, method for laser welding of different materials, and method for MIG welding of different materials
  • Flux-cored wire for welding different materials, method for laser welding of different materials, and method for MIG welding of different materials
  • Flux-cored wire for welding different materials, method for laser welding of different materials, and method for MIG welding of different materials

Examples

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Effect test

no. 1 example

[0058] Hereinafter, an example showing the effect of the flux-filled wire for laser welding of dissimilar materials according to the present invention will be specifically described by comparing it with a comparative example. As the aluminum alloy material 2 , a plate material having a plate thickness of 1.0 mm (for example, a width of 100 mm and a length of 300 mm) formed of an AA6022 alloy (JIS A6000 series alloy) was used. Furthermore, hot-dip galvanizing was performed on a 980 MPa-class cold-rolled steel sheet having a plate thickness of 1.2 mm (for example, a width of 100 mm and a length of 300 mm) to obtain a galvanized steel material 3 . Moreover, as the total test material of the welding object, what use is to keep the aluminum alloy material 2 and the galvanized steel material 3 as the plate is separated from the end of the plate by an appropriate length (for the aluminum alloy material 2, it is 10mm away from the end of the plate; For galvanized steel material 3, it ...

no. 2 example

[0074] Next, an example of a dissimilar material MIG welding method using the filled flux wire for dissimilar material welding of the present invention will be specifically described by comparing it with a comparative example. As the aluminum alloy material 2 , a plate material having a plate thickness of 2.0 mm (for example, a width of 100 mm and a length of 300 mm) formed of an AA6022 alloy (JIS A6000 series alloy) was used. Furthermore, hot-dip galvanizing was performed on a 980 MPa-class cold-rolled steel sheet having a thickness of 1.4 mm (for example, a width of 100 mm and a length of 300 mm) to obtain a galvanized steel material 3 . Moreover, as the total test material of the welding object, what use is to keep the aluminum alloy material 2 and the galvanized steel material 3 as the plate is separated from the end of the plate by an appropriate length (for the aluminum alloy material 2, it is 10mm away from the end of the plate; For galvanized steel material 3, it is a ...

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Abstract

Disclosed is a flux-cored wire (1) for use in the laser welding or MIG welding of different materials that are aluminum or an aluminum alloy material (2) and a galvanized steel material (3). The flux-cored wire (1) comprises a cylindrical sheath constituted of an aluminum alloy containing 0.8-1.9 mass% Si, with the remainder being aluminum and incidental impurities, and a flux filled in the space within the sheath and containing 20-60 mass% cesium fluoride. The incidental impurities in the sheath include Mn, Mg, or Fe, and the contents of these impurities are at most 0.1 mass% each with respect to the total mass of the sheath. The percentage filling of the flux is 5-20 mass% with respect to the total mass of the wire.

Description

technical field [0001] The present invention relates to a flux-filled wire for welding of dissimilar materials used for welding parts of transportation machinery such as automobiles and building materials, a method of laser welding of dissimilar materials using the flux-filled wire for welding of dissimilar materials, and dissimilar materials. A material MIG welding method, particularly relates to a filler wire for welding dissimilar materials suitable for welding aluminum or aluminum alloy materials and galvanized steel sheets, a method of laser welding of dissimilar materials, and a method of MIG welding of dissimilar materials. Background technique [0002] Currently, in transportation machines such as automobiles, steel materials are used as materials for vehicle bodies and the like. Steel materials used as parts of conveying machinery and the like are exposed to rainwater during use, so the surface is galvanized for rust prevention. In this way, the waterproof effect i...

Claims

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Application Information

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IPC IPC(8): B23K35/28B23K26/20B23K26/32B23K35/368C22C21/02B23K9/173B23K9/23B23K26/14B23K26/21
CPCB23K26/203B23K35/3605B23K35/00C22C21/02B23K35/286B23K2203/20B23K9/173B23K35/0266B23K35/36B23K35/368B23K9/232B23K26/211B23K2103/20B23K26/14B23K26/20B23K35/28B23K26/206
Inventor 松本刚笹部诚二
Owner KOBE STEEL LTD
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