A short review on laser welding/brazing of aluminum alloy to steel

Wang, Jintao; Fu, Xing; Zhang, Luobin; Zhang, Zheng; Liu, Jiahao; Chen, Si

doi:10.1007/s00170-021-06607-4

Cited by 24 publications

(5 citation statements)

References 57 publications

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“…The present paper aims to review the most relevant recent publications on dissimilar laser joining of aluminum to steel, giving a broad outline of what has been done in this research field, and then discussing in detail the strategies used and the results obtained so far. Therefore, we hope we will further contribute to complement other short reviews already available such as [36] and the recently published [37]. To this end, firstly the main challenges in laser joining of aluminum to steel are presented.…”

Section: Introductionmentioning

confidence: 85%

Recent Developments in Laser Welding of Aluminum Alloys to Steel

Wallerstein

Salminen

Lusquiños

et al. 2021

Metals

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The development of high-performance dissimilar aluminum–steel joints is necessary to promote the feasibility of multi-material design and lightweight manufacturing. However, joining aluminum to steel is a challenging task mainly due to the formation of brittle intermetallic compounds (IMC) at the joint interface. Laser welding is considered a very promising joining process for dissimilar materials, although its application in industry is still limited by the insufficient mechanical performance of the joints. The present paper aims to give a comprehensive review of relevant recent research work on laser joining of aluminum to steel, contributing to highlighting the latest achievements that could boost acceptance of laser joining of dissimilar materials by the modern industries. To this end, the most important challenges in laser joining of aluminum to steel are presented, followed by recent approaches to overcome these challenges, the state-of-art of comprehension of IMC formation and growth, and the different strategies to minimize them.

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Section: Introductionmentioning

confidence: 85%

Recent Developments in Laser Welding of Aluminum Alloys to Steel

Wallerstein

Salminen

Lusquiños

et al. 2021

Metals

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“…[ 8–10 ] Thanks to the favorable wetting between metal components, IPCs with intact interfaces can be easily prepared using simple techniques. [ 11,12 ] Furthermore, the morphology of the reinforcement phase, consisting of particles, short fibers, and continuous fibers, plays a crucial role in the performance of IPCs. [ 13–15 ] Zhou et al [ 4 ] compacted the 304 stainless steel discontinuous fibers and then carried out vacuum sintering to prepare a reinforced 3D network structure.…”

Section: Introductionmentioning

confidence: 99%

Mechanical Property and Failure Mechanism of Metal Rubber/ZA8 Composite Made by Squeeze Casting Process

Lai,

Hu,

et al. 2023

Adv Eng Mater

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High‐performance lightweight composites are developed by integrating metal rubber (MR) into a zinc alloy (ZA8) matrix via squeeze casting. MR, comprising 304 stainless steel wires with diameters of 0.15 mm, forms three‐dimensional network skeletons with volume fractions of 8.8 vol.% (S1), 11.1 vol.% (S2), and 13.4 vol.% (S3), respectively. The preparation parameters of the composites are optimized, and their micro‐hardness is investigated. Special attention is paid to the ultimate compression and shear performance at 25 °C, 150 °C, and 250 °C. The microstructure and failure analysis are performed via SEM. The results reveal a 48.0% increase in micro‐hardness at composite interfaces relative to ZA8. At 25 °C, S2 possesses an ultimate compressive strength (UCS) of 401.4 MPa, which is 33.7% higher than that of ZA8. At 150 °C and 250 °C, S3 exhibits UCS values of 180.3 MPa and 74.3 MPa, exceeding those of ZA8 by 61.7% and 110.5%, respectively. Meanwhile, the ultimate shear strength of composites slightly drops below that of the matrix: the corresponding value of S1 specimen (158.4 MPa) at 250°C is 11.5% below that of ZA8. Therefore, compression and shear failure mechanisms of MR/ZA8 composites are quite intricate, involving SSW separation, necking, and ZA8 fractures.This article is protected by copyright. All rights reserved.

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“…Laser welding technology has become increasingly popular in the auto body [1], new energy power battery, and other industrial manufacturing industries due to its high energy density, fast welding speed, low welding distortion, and stress [2][3][4]. When a high-power laser is applied to the surface of the workpiece, the material vaporizes and forms a 'keyhole'.…”

Section: Introductionmentioning

confidence: 99%

Recognition of DC01 Mild Steel Laser Welding Penetration Status Based on Photoelectric Signal and Neural Network

Niu

Gao²,

Gao

2023

Metals

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Achieving online inspection and recognition of laser welding quality is essential for intelligent industrial manufacturing. The weld penetration status is an important indicator for assessing the welding quality, and the optical signal is the most common changing feature in the laser welding process. This paper proposes a new method based on a photoelectric signal and neural network for laser welding penetration status identification. A laser welding experimental system platform based on a photoelectric sensor is built, the laser welding experimental material is DC01 mild steel, and the photoelectric signal in the laser welding process is collected. The collected signal is then processed, and features are extracted using wavelet packet transform and probability density analyses. The mapping relationship between the signal features and weld penetration status is investigated. A deep learning convolutional neural network (CNN)-based weld penetration status recognition model is constructed, with multiple eigenvalue vectors as input, and the model training and recognition results are analyzed and compared. The experimental results show that the photoelectric signal features are highly correlated with the weld penetration status, and the constructed CNN weld penetration status recognition model has an accuracy of up to 98.5% on the test set, demonstrating excellent performance in identifying the quality of the laser welding. This study provides the basis for the online inspection and intelligent identification of laser welding quality.

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A short review on laser welding/brazing of aluminum alloy to steel

Cited by 24 publications

References 57 publications

Recent Developments in Laser Welding of Aluminum Alloys to Steel

Recent Developments in Laser Welding of Aluminum Alloys to Steel

Mechanical Property and Failure Mechanism of Metal Rubber/ZA8 Composite Made by Squeeze Casting Process

Recognition of DC01 Mild Steel Laser Welding Penetration Status Based on Photoelectric Signal and Neural Network

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