Reference : The effect of temperature and joining speed on the joining quality for conduction las...
Scientific congresses, symposiums and conference proceedings : Unpublished conference
Engineering, computing & technology : Materials science & engineering
Physics and Materials Science
http://hdl.handle.net/10993/47673
The effect of temperature and joining speed on the joining quality for conduction laser joining of metals to polymers
English
Amne Elahi, Mahdi mailto [University of Luxembourg > Faculty of Science, Technology and Medicine (FSTM) > Department of Engineering (DoE) >]
Hennico, Max []
Plapper, Peter mailto [University of Luxembourg > Faculty of Science, Technology and Medicine (FSTM) > Department of Engineering (DoE) >]
24-Jun-2021
10
No
International
Laser in Manufacturing (LiM)
21-24 June 2021
WLT
Online
Germany
[en] metal to polymer laser joining ; temperature measurement ; polyamide degradation ; shear strength
[en] Laser joining of metals to polymers offers several advantages to produce lightweight hybrid assemblies. An important one is the exceptional control over the heat input which defines the temperature at the interface of the materials. Initially, the in-situ heating observation of PA inside ESEM is considered. Then, aluminum and polyamide are joined in an overlap configuration while the temperature was recorded simultaneously at different areas between the materials. The results show that due to excessive heat input, polyamide degrades and leaves bubbles in the melted area. Finally, the materials are laser joined with several joining speeds to investigate different cooling rates of the polyamide during the joining process. It is concluded that joining with high cooling rates generates an amorphous melted layer of the polyamide which is different from the semi-crystalline structure of the bulk. This difference acts as a stress concentration zone and reduces the shear strength of the assembly.
Fonds National de la Recherche - FnR
Researchers ; Professionals ; Students
http://hdl.handle.net/10993/47673
FnR ; FNR11633333 > Mahdi Amne Elahi > LAMP > Process Innovation For Sensors In Mobile Applications Based On Laser Assisted Metal-plastic Joining > 01/11/2017 > 31/10/2021 > 2017

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