Laser Assisted Joining of Plastic Metal Hybrids

Roesner, Andreas; Scheik, Sven; Olowinsky, Alexander; Gillner, Arnold; Reisgen, Uwe; Schleser, Markus

doi:10.1016/j.phpro.2011.03.146

Cited by 125 publications

(47 citation statements)

References 1 publication

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“…There are several beneficial properties of polymer materials, like good specific mechanical properties and low price compared to weight and density, which cause the growing utilization, especially in the vehicle industry due to weight and fuel consumption reduction intentions (Farazila et al [6], Cenigaonaindia et al [4], Bereczky et al [3]). However, since metallic structural materials can not be totally substituted in our structures, the joining of metals and plastics have to be solved, to take advantage of both materials beneficial properties simultaneously (Grujicic et al [7], Roesner et al [9]). New joining technologies developed in the last few years are the transparent-absorbent laser welding and the laser assisted metal-plastic joining (Devrient et al [5], Bauernhuber et al [1], Katayama et al [8]).…”

Section: Introductionmentioning

confidence: 99%

Study on the transparency of polymer materials in case of Nd:YAG laser radiation

Markovits

Bauernhuber

Mikula

2013

Per. Pol. Transp. Eng.

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The exact knowledge of laser-polymer interaction and polymer behaviour is a fundamental requirement to establish good joint quality in the case of transparent-absorbent joining. In the course of this study, the authors investigated the effect of different material properties and laser settings, like thickness, additives, laser power and pulse characteristics, on the transparency in the case of poly(methyl methacrylate) and polypropylene materials. A new method was developed to detect the limits of material tolerance, which can be the basis of further research on polymer-polymer and polymer-metal hybrid joints.

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Section: Introductionmentioning

confidence: 99%

Study on the transparency of polymer materials in case of Nd:YAG laser radiation

Markovits

Bauernhuber

Mikula

2013

Per. Pol. Transp. Eng.

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“…In this regard, the surface pretreatments such as OF LASER APPLICATIONS VOLUME 27, NUMBER S2 FEBRUARY 2015 grinding, 13 milling, 2 abrasive blasting (AB), 7 and laser processing [8][9][10][11] are applied prior to bonding. One of the most promising processes is the laser surface pretreatment, which results in a joint strength for adhesive bonds equal to anodizing and etching processes.…”

Section: B Laser Surface Pretreatment For the Metal Joining Partnermentioning

confidence: 99%

Laser surface pre-treatment of aluminum for hybrid joints with glass fiber reinforced thermoplastics

Heckert

Zaeh

2015

Journal of Laser Applications

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Lightweight construction is a major trend in the automotive industry. The connection of fiber reinforced plastics with aluminum is consequently seen as a promising prospect. In this regard, thermal joining is one potential joining technology for bonding of such hybrid joints. Yet a pretreatment of the aluminum surface is necessary to create a load bearing metal-plastic joint. Recent research has shown that a laser surface pretreatment provides high joint strengths. However, there is a variety of laser sources and possible surface topographies with typical structure sizes ranging from macroscopic to nanoscopic profiles. Within this work, two different laser induced structures were generated on aluminum sheets which were subsequently joined to glass fiber reinforced thermoplastics. One of the two laser structures was created with a continuous wave laser using a modified remote ablation cutting process. The other structure was manufactured by a pulsed laser source with a pulse width in the nanosecond-range. The two laser processes were compared with a conventional abrasive blasting process and they were characterized in terms of surface topography and chemical composition of the surface. Furthermore, the achievable joint strength for joining with glass fiber reinforced thermoplastics was investigated. It is shown that the properties of the thermoplastic as well as the surface topography and chemical composition of the metal strongly influence the resulting joint strength.

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“…Preliminary surface treatments before welding have shown a significant impact on the joint strength and quality. Researchers [3][4][5][6][7][8][9][10][11][12] reported the effects of several surface pretreatments on LAMP, including mechanical, chemical, electrochemical, and laser pretreatments for metals, as well as plasma and UV ozone pretreatment for polymers. Similar to adhesive bonding, two main factors were reported in the literature as affecting the LAMP joint properties: mechanical interlocking and physicochemical bonding.…”

Section: Introductionmentioning

confidence: 99%

“…Increased surface roughness has shown to have a positive effect on enhancing LAMP joint strength by increasing mechanical interlocking effects [9,10,12]. Furthermore, an increased surface roughness might increase the surface wettability of treated metal, which in turns allows a better wetting of the molten polymer during the laser welding process.…”

Section: Introductionmentioning

confidence: 99%

Influence of Aluminum Laser Ablation on Interfacial Thermal Transfer and Joint Quality of Laser Welded Aluminum–Polyamide Assemblies

et al. 2019

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Laser assisted metal–polymer joining (LAMP) is a novel assembly process for the development of hybrid lightweight products with customized properties. It was already demonstrated that laser ablation of aluminum alloy Al1050 (Al) prior to joining with polyamide 6.6 (PA) has significant influence on the joint quality, manifested in the joint area. However, profound understanding of the factors affecting the joint quality was missing. This work investigates the effects of laser ablation on the surface properties of Al, discusses their corresponding impact on the interfacial thermal transfer between the joining partners, and evaluates their effects on the joint quality. Samples ablated with different parameters, resulting in a range from low- to high-quality joints, were selected, and their surface properties were analyzed by using 2D profilometry, X-ray photoelectron spectroscopy (XPS), scanning electron microscope (SEM), and energy-dispersive X-ray spectroscopy (EDX). In order to analyze the effects of laser ablation parameters on the interfacial thermal transfer between metal and polymer, a model two-layered system was analyzed, using laser flash analysis (LFA), and the thermal contact resistance (TCR) was quantified. Results indicate a strong influence of laser-ablation parameters on the surface structural and morphological properties, influencing the thermal transfer during the laser welding process, thus affecting the joint quality and its resistance to shear load.

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Laser Assisted Joining of Plastic Metal Hybrids

Cited by 125 publications

References 1 publication

Study on the transparency of polymer materials in case of Nd:YAG laser radiation

Study on the transparency of polymer materials in case of Nd:YAG laser radiation

Laser surface pre-treatment of aluminum for hybrid joints with glass fiber reinforced thermoplastics

Influence of Aluminum Laser Ablation on Interfacial Thermal Transfer and Joint Quality of Laser Welded Aluminum–Polyamide Assemblies

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