Laser-assisted direct joining of AISI304 stainless steel with polycarbonate sheets: Thermal analysis, mechanical characterization, and bonds morphology

Lambiase, F.; Genna, Silvio

doi:10.1016/j.optlastec.2016.09.028

Cited by 106 publications

(35 citation statements)

References 52 publications

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“…Even though the aluminium alloy has substantially lower strength and stiffness than steels, it is successfully compensated in the design of a car spaceframe, where a thicker material produced a smooth joining. In automotive industry applications, various joining processes have been introduced, such as friction lap welding [2], laser-assisted direct joining [3,4], friction riveting, and flow drilling. To satisfy the various requirements of the automotive and aerospace industries, the combination of dissimilar adherends has been introduced, particularly for joining non-metals to metals, as applied in research.…”

Section: Introductionmentioning

confidence: 99%

Tensile and fatigue properties of single lap joints of aluminium alloy/glass fibre reinforced composites fabricated with different joining methods

Mariam

Afendi

Majid

et al. 2018

Composite Structures

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Section: Introductionmentioning

confidence: 99%

Tensile and fatigue properties of single lap joints of aluminium alloy/glass fibre reinforced composites fabricated with different joining methods

Mariam

Afendi

Majid

et al. 2018

Composite Structures

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“…Besides these, laser-based joining processes appears to be a valid alternative solution for joining different materials, thanks to their ability in providing an instantaneous bonding, a highly localized heating, no vibration, low residual stresses, flatness of the external surfaces, an improved joint aesthetics, all in one step [18][19][20][21]. Moreover, this non-contact thermal-based joining process has a better environmental adaptability and a more uniform stress distribution if compared with the joining methods described above.…”

Section: Introductionmentioning

confidence: 99%

Combined Fuzzy and Genetic Algorithm for the Optimisation of Hybrid Composite-Polymer Joints Obtained by Two-Step Laser Joining Process

et al. 2020

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In the present work, genetic algorithms and fuzzy logic were combined to model and optimise the shear strength of hybrid composite-polymer joints obtained by two step laser joining process. The first step of the process consists of a surface treatment (cleaning) of the carbon fibre-reinforced polymer (CFRP) laminate, by way of a 30 W nanosecond laser. This phase allows removing the first matrix layer from the CFRP and was performed under fixed process parameters condition. In the second step, a diode laser was adopted to join the CFRP to polycarbonate (PC) sheet by laser-assisted direct joining (LADJ). The experimentation was performed adopting an experimental plan developed according to the design of experiment (DOE) methodology, changing the laser power and the laser energy. In order to verify the cleaning effect, untreated laminated were also joined and tested adopting the same process conditions. Analysis of variance (ANOVA) was adopted to detect the statistical influence of the process parameters. Results showed that both the laser treatment and the process parameters strongly influence the joint performances. Then, an uncertain model based on the combination of fuzzy logic and genetic algorithms was developed and adopted to find the best process parameters’ set able to give the maximum joint strength against the lowest uncertainty level. This type of approach is especially useful to provide information about how much the precision of the model and the process varies by changing the process parameters.

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“…In addition, new emerging joining techniques have been recently proposed to enrich the existing traditional techniques [9][10][11]. Examples of these emerging techniques are friction lap welding, ultrasonic welding, friction spot joining, laser-assisted direct joining, infrared stacking, and friction riveting [12,13,[15][16][17][18].…”

Section: Introductionmentioning

confidence: 99%

A FEM‐based virtual test‐rig for hybrid metal‐composites clinching joints

Dean

Rolfes

Grbic

et al. 2019

Materialwissenschaft Werkst

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A 3D FEM-based virtual test-rig tool for the hybrid metal-composites clinching technology is developed and built in the commercial finite element software Abaqus. The proposed tool consists of two modules: a module to simulate the hybrid clinching process and another to predict the strength of the clinched joints. At first, experimental results concerning the hybrid metal-composites (EN AW-5754-PA6GF30) clinching are presented. Then, the developed virtual tool is described in detail outlining the constitutive models implemented for the hybrid pairing sheets as well as illustrating the proposed FE numerical procedures. Later, the developed tool is applied to the hybrid pairing EN AW-5754-PA6GF30. In comparison to the conducted experiments, the simulation results obtained show the applicability and accuracy of the developed virtual testing tool. Keywords: Metal / composites / multi-material design / hybrid clinching / virtual testing / finite element method (FEM) Ein dreidimensionales FEM-basiertes Simulationsmodell zur virtuellen Prüfung von hybriden Clinchverbindungen aus Faser-Kunststoff/Metall-Verbunden wurde entwickelt und in der kommerziellen Finite-Elemente-Software Abaqus aufgebaut. Das Simulationsmodell besteht aus zwei Berechnungsmodulen: Einem zur Simulation des hybriden Clinchprozesses, und einem weiteren zur numerischen Vorhersage der Festigkeit der hybriden Clinchverbindung. Zunächst werden experimentelle Ergebnisse zum hybriden Clinchen der Faser-Kunststoff/Metall-Verbunde (EN AW-5754 / PA6GF30) vorgestellt. Anschließend wird das entwickelte Berechnungsmodell detailliert beschrieben, wobei hier insbesondere auf die konstitutiven Materialmodelle, die für die einzelnen Fügeparameter in Abaqus implementiert worden sind, sowie auf das Simulationsverfahren eingegangen wird. Nach Berechnung des hybriden Clinchprozesses und erfolgreicher Modellvalidierung wird das Berechnungsmodul zur virtuellen Prüfung der Verbindungsfestigkeit angewandt. Durch den Vergleich der Simulationsergebnisse mit den experimentellen Daten wird die Anwendbarkeit und Genauigkeit des hier entwickelten virtuellen Prüfstands aufgezeigt.

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Laser-assisted direct joining of AISI304 stainless steel with polycarbonate sheets: Thermal analysis, mechanical characterization, and bonds morphology

Cited by 106 publications

References 52 publications

Tensile and fatigue properties of single lap joints of aluminium alloy/glass fibre reinforced composites fabricated with different joining methods

Tensile and fatigue properties of single lap joints of aluminium alloy/glass fibre reinforced composites fabricated with different joining methods

Combined Fuzzy and Genetic Algorithm for the Optimisation of Hybrid Composite-Polymer Joints Obtained by Two-Step Laser Joining Process

A FEM‐based virtual test‐rig for hybrid metal‐composites clinching joints

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