Effect of metal micro-structuring on the mechanical behavior of polymer–metal laser T-joints

Rodríguez-Vidal, E.; Sanz, C.; Soriano, Carlos; Leunda, Josu; Verhaeghe, G.

doi:10.1016/j.jmatprotec.2015.10.026

Cited by 97 publications

(35 citation statements)

References 12 publications

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“…The results presented that the high tensile-shear strengths up to 25 MPa was observed in a short term overlap shear tests for a combinations of aluminium or steel with polyamide 6, with 30% wt. [27].…”

Section: Introductionmentioning

confidence: 99%

Hot Press Joining Optimization of Polyethylene to Aluminium Alloy AA6061-T6 Lap Joint Using Design of Experiments

Hussein¹,

Mhessan²,

Alwan³

2017

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Abstract. The hot press method is used to join a poly-ethylene plate of thickness 4 mm with an aluminium alloy AA6061-T6 plate of thickness 1.5 mm. A preanodizing process is crucial for the success of such joint. The anodizing was performed under a current density of 200 A/m 2 , temperature 24°C, sulphuric acid 5 wt. % and for a 60 minutes. Three period parameters were considered in the hot pressing process; temperature: 115 and 135°C, pressure: 2, 6, and 10 bar and pressing time: 1, 2, 3, 4 and 5 minutes. The joint specimens are tested by shear tensile test, microstructure, energy dispersive spectrometry, differential scanning calorimetric and thermo grvanometric analysis. The results of shear tensile were analyzed using design of experiments. Minimum and maximum shear tensile force were found at temperature T = 115°C where; F min = 680N and F max = 2800N. From Pareto chart, the applied pressure had the most significant effect on the shear tensile force of the joint specimens compared to temperature and joining time. The main effect plot showed that optimum value of shear tensile force was obtained at joining conditions of T = 135°C, P = 6 bar and t = 3 minutes. The tested specimens exhibited an interfacial shear failure, extension and necking in the region of polymer with a ductile fracture. The mechanical interlocking of polymer element in the anodizing surface is approximately 15 µm. The melting point and glass transmission temperature of PE are decreased after the hot press.

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Section: Introductionmentioning

confidence: 99%

Hot Press Joining Optimization of Polyethylene to Aluminium Alloy AA6061-T6 Lap Joint Using Design of Experiments

Hussein¹,

Mhessan²,

Alwan³

2017

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“…), it is necessary to develop new process technologies that allow the joining of adhesion incompatible polymers. Therefore, investigations of dissimilar material combinations, especially in the area of polymermetal combinations [20][21][22][23][24], have shown a high potential for joints based on or provided by form-fits in a two-stage process with pre-structuring the metal part. Furthermore, initial investigations [25] into formfit polymer-polymer combinations demonstrated the feasibility and potential of mechanical adhesion in welding for expanding the material combination spectrum.…”

Section: Two-stage Joining Processes With Structuring One Joining Parmentioning

confidence: 99%

Influence of the thermomechanical properties on the joining of adhesion incompatible polymers by form-fit using the vibration welding process

Wolf¹,

Hertle²,

Drummer³

2019

Express Polym. Lett.

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In the product manufacturing cycle, the joining of polymers often takes a central position. Vibration welding is characterized by short cycle times, high process flexibility and stability as well as by the achievement of high bond strengths without using additives. However, the vibration welding process is clearly restricted by a necessary adhesion compatibility of the joining partners. By means of structuring one joining partner and subsequent filling of the structures by a second joining partner, the joining by form-fit using vibration welding enables the combination of adhesion incompatible polymers. Within these investigations, bonds between adhesion incompatible semi-crystalline thermoplastics were generated based on mechanical adhesion. Also semi-crystalline and amorphous polymers could be connected for the first time without any connecting elements, although they conventionally do not show mechanical resilience. The analysis of the thermomechanical material properties and the resulting multimaterial link enabled the determination of first influences on the resulting formfit connection caused by the occurring joining zone temperature.

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“…Bubbles can form in the polymer material during the joining process caused by the evaporation of remnant monomer molecules or additives (this phenomenon is called humping), which can strengthen or weaken joints depending on their quantity and size [18]. Adhesion between the metal and polymer joining partners can be increased by structuring the joining surface of the metal specimen using a laser beam either to remove material from the surface [19], to transform material on the surface [20,21], or to add material to the surface [5,22]. It is also possible to use technologies like corona-discharge plasma treatment to chemically modify the surface of either the metal and/or the polymer specimens.…”

Section: Introductionmentioning

confidence: 99%

Mechanical and Optical Investigation of Laser Welded Structural Steel - Poly(methyl-Methacrylate) Hybrid Joint Structures

Csizér

Temesi

Molnár

2019

APP

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Modern welding processes that can easily be automated (such as friction stir welding, laser welding and ultrasonic welding) are gaining popularity in joining metal-polymer hybrid structures. This field of science is intensively studied around the globe, as a dependable, productive joining method that directly produces structurally sound joints between a metal and a polymer structure could unleash unforeseen possibilities in the vehicle industry. In our experiments, we manufactured hybrid steel-poly(methyl-methacrylate) (PMMA) joints with laser welding, using the 2p design of experiment method. We measured the effect of cellulose reinforcing fibres (in varying weight percentages) on the transparency and weldability of the PMMA material and the effect of welding parameters on the mechanical properties of the joints. We also examined the vicinity of the welded seam with scanning electron microscopy.

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Effect of metal micro-structuring on the mechanical behavior of polymer–metal laser T-joints

Cited by 97 publications

References 12 publications

Hot Press Joining Optimization of Polyethylene to Aluminium Alloy AA6061-T6 Lap Joint Using Design of Experiments

Hot Press Joining Optimization of Polyethylene to Aluminium Alloy AA6061-T6 Lap Joint Using Design of Experiments

Influence of the thermomechanical properties on the joining of adhesion incompatible polymers by form-fit using the vibration welding process

Mechanical and Optical Investigation of Laser Welded Structural Steel - Poly(methyl-Methacrylate) Hybrid Joint Structures

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