Bonding method for aluminium alloy material

A technology of aluminum alloy materials and joining methods, applied in the direction of welding/cutting media/materials, welding media, welding equipment, etc., can solve the problems of inability to set hollow parts, uneven joints, high temperatures, etc., and achieve small dimensional changes and low strength Effects of embrittlement and joint performance

Inactive Publication Date: 2014-07-30
FURUKAWA SKY ALUMINUM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method is a method in which multiple alloy plates are composited by forging, so joining cannot be performed while maintaining the shape before and after joining.
In addition, it is impossible to provide a hollow part between the bonding materials to be bonded, or to bond uneven materials
Furthermore, a high-temperature, large-scale forging device is also required

Method used

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  • Bonding method for aluminium alloy material
  • Bonding method for aluminium alloy material
  • Bonding method for aluminium alloy material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment A( Embodiment 1～30 and comparative example 31～36

[0111] After preparing ingots with the alloy compositions shown in Table 1, rolled sheets with a thickness of 1 mm were obtained by hot rolling and cold rolling. After the rolled sheet was placed in a leveler, it was annealed at 380° C. for 2 hours to obtain a rolled sheet sample. Using the thus-produced rolled sheet samples, they were joined by heating in the air using a chloride-based flux, and the joining rate and deformation rate were evaluated.

[0112] [Table 1]

[0113]

[0114] (1) Engagement rate evaluation

[0115] Two plates with a width of 20mm x a length of 50mm were cut out from the above-mentioned rolled plate sample, and the respective end faces were smoothed with a milling cutter, and the upper plate and the lower plate of the aluminum alloy material were combined to produce Image 6 Inverted T-shaped joint test piece shown in . For the upper plate and the lower plate of the test piece, aluminum alloy plates having the compositions shown in Table 1 were ...

Embodiment B

[0147] Example B (Examples 37-46 and Comparative Examples 47-49)

[0148] In the same manner as in Example A, the rolled sheet samples of the alloys shown in Table 1 were joined without using flux by heating in the air, and the joining rate and deformation rate were evaluated.

[0149] (1) Engagement rate evaluation

[0150] Two plates of 20 × 20 mm and 10 × 10 mm were cut out from the above-mentioned rolled plate sample, and made Figure 8 The bonding rate evaluation test piece shown in . Table 3 shows combinations of the upper plate and the lower plate of each test piece. The composition of the aluminum alloy of the upper plate and the lower plate is the same, and the upper plate and the lower plate are stacked without applying flux, and fixed by applying a pressure of 100 kPa with a spring, and used as a joint rate evaluation sample.

[0151] [table 3]

[0152]

[0153] The above-mentioned test pieces were heated up to a predetermined temperature in an air atmosphere...

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Abstract

[PROBLEM] To provide a novel bonding method which can achieve excellent bond properties and reliability in a furnace without using a bonding member. [SOLUTION] An aluminium alloy material bonding method for bonding together members to be bonded, one member to be bonded being an aluminium alloy material and the other member to be bonded being either an aluminium alloy material or pure aluminium, the bonding method being characterised in that the bonding takes place in the atmosphere and at a temperature at which the ratio of the mass of a liquid phase generated in the aluminium alloy material, which is the one member to be bonded, relative to the total mass of said aluminium alloy material, is 5-35% inclusive.

Description

technical field [0001] The present invention relates to a method of joining a joined member made of an aluminum alloy material and a joined member made of an aluminum alloy material or a pure aluminum material as the other, and joining the two joined members. Background technique [0002] Conventionally, various methods have been employed for joining metal members. In Non-Patent Document 1, metal joining methods are roughly classified into material joining methods, chemical joining methods, and mechanical joining methods. Any of these methods is also used for joining aluminum alloy materials. [0003] The material joining method is a method of firmly joining members to be joined by metal bonding. By doing it appropriately, the reliability of the junction can be improved. Specifically, it can be classified into welding methods such as fusion bonding; solid phase bonding methods such as diffusion bonding methods, friction bonding methods, and pressure bonding methods; liqui...

Claims

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Application Information

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IPC IPC(8): B23K20/00B23K20/16B23K20/233B23K35/362C22C21/02C22C21/06C22C21/12
CPCB23K20/2333B23K2103/10B23K2103/12B23K2103/18
Inventor 柳川裕村濑崇
Owner FURUKAWA SKY ALUMINUM CORP
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