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Ultrasonic laser welding method and metal material

A technology of laser welding and welding method, which is applied in the direction of laser welding equipment, welding equipment, metal processing equipment, etc., and can solve problems such as unreachable aluminum alloy, difficult metallurgy, and high risk

Pending Publication Date: 2022-06-07
CHINA INNOVATION ACADEMY OF INTELLIGENT EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, at present, the performance of aluminum alloy can not meet the requirements of completely replacing steel materials, so a kind of aluminum / steel bimetallic material should be born in time
[0003] In related technologies, the welding method is usually used for the connection between aluminum alloy and steel. However, due to the large difference in the characteristics of aluminum alloy and steel and the low solubility between them, it will lead to the gap between the aluminum / steel interface. Metallurgy becomes very difficult, and a brittle phase Fe will form between the two interfaces 3 Al leads to poor interface wettability and is prone to brittle fracture, with a high risk

Method used

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  • Ultrasonic laser welding method and metal material
  • Ultrasonic laser welding method and metal material
  • Ultrasonic laser welding method and metal material

Examples

Experimental program
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Effect test

Embodiment 1

[0056] The present embodiment provides an ultrasonic laser welding method, comprising the following steps:

[0057] S10: Obtain a first plate and a second plate; the first plate includes opposite first and second surfaces, and the second plate includes opposite third and fourth surfaces, and pulse laser cleaning is used to clean the first and second surfaces. Surface treatment on the third side, and then use acetone to wipe the parts to be welded;

[0058] Among them, the first plate is made of 6063 aluminum alloy plate with a thickness of 3mm, and the second plate is made of 304 stainless steel plate with a thickness of 2mm; the pulse laser power for cleaning the 6063 aluminum plate is 100W, the pulse frequency is 50kHz, the scanning speed is 3m / s, the number of scans is 2, and the pulse width 100ns, laser power density 1.5×10 5 W / cm 2 ; 300W pulse laser power for cleaning 304 stainless steel plate, pulse frequency 20kHz, scanning speed 2m / s, scanning times 3 times, pulse w...

Embodiment 2

[0066] The present embodiment provides an ultrasonic laser welding method, comprising the following steps:

[0067] S10: Obtain a first plate and a second plate; the first plate includes opposite first and second surfaces, and the second plate includes opposite third and fourth surfaces, and pulse laser cleaning is used to clean the first and second surfaces. Surface treatment on the third side, and then use anhydrous ethanol to wipe the parts to be welded;

[0068] Among them, the first plate is made of 6063 aluminum alloy plate with a thickness of 3mm, and the second plate is made of 304 stainless steel plate with a thickness of 2mm; the pulse laser power for cleaning the 6063 aluminum plate is 100W, the pulse frequency is 50kHz, the scanning speed is 3m / s, the number of scans is 2, and the pulse width 100ns, laser power density 1.5×10 5 W / cm 2 ; 300W pulse laser power for cleaning 304 stainless steel plate, pulse frequency 20kHz, scanning speed 2m / s, scanning times 3 time...

Embodiment 3

[0076] This embodiment provides a metal material, which is prepared by the method of Embodiment 1 or 2. The AlCuFe quasicrystal with a network-like intermittent distribution is formed at the aluminum / steel interface. For the transmission diffraction pattern of the quasicrystal phase, please refer to Figure 4 .

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Abstract

The invention provides an ultrasonic laser welding method and a metal material.The welding method comprises the following steps that S10, a first plate and a second plate are obtained; wherein the first plate comprises a first surface and a second surface which are opposite to each other, the second plate comprises a third surface and a fourth surface which are opposite to each other, and the first surface and the third surface are subjected to surface treatment; s20, the third face is subjected to texturing treatment; s30, the first plate and the second plate are oppositely placed, so that the first face and the third face are attached; wherein a middle metal layer is arranged between the first surface and the third surface; and S40, the first plate and the second plate are welded in an ultrasonic laser welding mode, so that a quasi-crystal structure is generated between the first plate and the second plate. According to the method, generation of a brittle phase is reduced in an ultrasonic laser mode, meanwhile, grains are refined, a quasi-crystal structure is formed, and the strength of a welding seam is improved by means of the characteristic that quasi-crystals enhance dispersion distribution.

Description

technical field [0001] The invention relates to the technical field of welding, in particular, to an ultrasonic laser welding method and metal material. Background technique [0002] Due to the demand for energy conservation, emission reduction and carbon reduction, the lightweighting of core components of high-end equipment in the fields of aerospace, automobile manufacturing, electronic communications, and rail transit is one of the important development directions in the future. Lightweight is one of the ways to achieve the lightweight of high-end equipment under the condition of ensuring the strength and service performance of the structure. Selecting structural materials with lower density is one of the ways to reduce the weight of high-end equipment. sex, etc. Because aluminum alloy has the advantages of light weight and high strength, good processing performance, good corrosion resistance and abundant output, it is one of the ideal structural materials to replace ste...

Claims

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Application Information

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IPC IPC(8): B23K20/10B23K26/21
CPCB23K20/10B23K26/21Y02P70/50
Inventor 王冰龙伟民程战任亚飞王珲杨雷吕红英
Owner CHINA INNOVATION ACADEMY OF INTELLIGENT EQUIP CO LTD
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