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Welding method of metal layer shaped composite board

A welding method and composite plate technology, applied in the field of material processing, can solve the problems of limiting the promotion and application of metal layered materials, difficult layered material welding, inclusions and pores, etc., to reduce the heat-affected zone of the weld seam and improve the welding quality. Efficiency and less welding defects

Inactive Publication Date: 2015-06-10
NO 52 INST OF CHINA NORTH IND GRP CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, the above-mentioned welding process is difficult to achieve welding of layered materials. Even if it is barely welded, the performance of the joint is very low, only about 40% or even lower than the strength of the base metal. crack
This has limited the promotion and application of metal layered materials to a large extent.

Method used

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  • Welding method of metal layer shaped composite board
  • Welding method of metal layer shaped composite board
  • Welding method of metal layer shaped composite board

Examples

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Effect test

Embodiment 1

[0025] Example 1, such as figure 1 , figure 2 and image 3 As shown, the present embodiment welds a 40.0mm thick layered composite aluminum-aluminum alloy material with 5 layers, including the following steps:

[0026] (1) Welding joint design: a layered aluminum-aluminum alloy composite plate with a thickness of 40.0mm and 5 layers with V-shaped grooves on both sides, an angle of 35°, and a blunt edge of 20.0mm in the middle. (2) Welding method design: the middle blunt edge and the weld bevel matching the V-shaped bar are welded twice by laser method, see figure 1 , where H1=10mm, H2=20mm, H3=10mm, angle 35°, 1 is the first weld, 2 is the second weld, 3 is the third weld, 4 is the fourth weld, 5 is the fifth weld, 6 is the sixth weld. (3) Preparation of V-shaped strips: The V-shaped strips and the base metal with V-shaped grooves are completely consistent in layer structure (two layers) and thickness (10.0mm). The preparation method is wire cutting, see figure 2 and ...

Embodiment 2

[0027] Example 2, such as Figure 4 As shown, in this embodiment, the layered composite aluminum-aluminum alloy material with a thickness of 15.0 mm and 2 layers is welded, including the following steps:

[0028] (1) Welding joint design: I-shaped grooves are made on a layered composite aluminum-aluminum alloy plate with a thickness of 15.0mm and 2 layers. (2) Welding method design: The I-shaped groove is welded on both sides by laser method. (3) Preparation of V-shaped strips and selective filler wires: I-shaped grooves do not need to prepare V-shaped strips and selective filler wires. (4) Welding sequence design: first weld one side, then weld the other side, see the specific welding sequence Figure 4 , where, H1=9mm, H2=6mm, 1 is the first weld, 2 is the second weld.

Embodiment 3

[0029] Example 3, such as Figure 5 As shown, the present embodiment is 30.0mm thick and has 3 layers of layered composite aluminum-magnesium-aluminum alloy materials for welding, including the following steps:

[0030] (1) Design of welded joints: a layered aluminum-magnesium-aluminum alloy composite plate with a thickness of 30.0mm has a V-shaped groove on one side, an angle of 30°, and a blunt edge of 20.0mm in the middle. (2) Welding method design: The blunt edge in the middle is welded on both sides by laser method, and the V-shaped groove is welded by laser arc composite heat source method. (3) Selection of filler wire: choose the aluminum alloy welding material that is consistent and matched with the base metal of the V-shaped groove for the filler wire. (4) Welding sequence design: first weld the blunt edge in the middle, and then weld the V-shaped groove. For the specific welding sequence, see Figure 5 , where H1=10mm, H2=8mm, H3=12mm, 1 is the first weld, 2 is the...

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Abstract

The invention relates to a welding method of a metal layer shaped composite board. The elding method of the metal layer shaped composite board is characterized by the following steps of 1, welded joint design, 2, wielding method design, 3, V-shaped strips preparation and filler wire selection and 4, welding sequence design. The wielding method design includes that the laser is utilized to weld I shaped grooves, middle truncated edge and weld grooves matching with the V-shaped strips; when the V shaped groove only has one layer of materials, the laser arc composite heat source is utilized to weld the weld grooves. The wielding method design includes welding the I shaped grooves and the middle truncated edge first and then the V-shaped grooves. Compared with the prior art, the welding method of the metal layer shaped composite board has the advantages that the welding method of the metal layer shaped composite board is high in welding quality, few in welding defects, is easy to operate and can increase welding efficiency.

Description

technical field [0001] The invention relates to a method for compounding different metal layered materials into plates, and relates to the technical field of material processing. Background technique [0002] Several aluminum alloy plates of different composition and thickness - aluminum alloy plate, magnesium alloy plate - aluminum alloy plate and magnesium - magnesium alloy plate are compounded together by a certain process, according to a certain demand, the metal layer is made The laminated composite board has many new properties, such as one of the surfaces can have excellent corrosion resistance or good electrical and thermal conductivity, etc. In addition, the layered material has a higher energy absorption effect than the homogeneous material as a whole . [0003] The use of layered materials to manufacture structural parts can achieve significant weight reduction, and at the same time reduce the use of valuable materials and reduce manufacturing costs. However, due...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K28/02B23K26/323B23K33/00
CPCB23K26/26B23K26/348B23K33/004B23K2101/185B23K2103/18
Inventor 陈东高马志华王生陈东亮明珠杨武林周古昕王法科任宝辉刘红伟马冰王冬生张立君
Owner NO 52 INST OF CHINA NORTH IND GRP CORP
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