The effect of laser surface structuring patterns on the interfacial resistance of aluminum joints bonded with epoxy adhesive
Source abstract
Abstract
Laser ablation can be incorporated for surface treatment of adhesively bonded joints with environment benefit as compared to chemical treatments. In the present research, laser surface structuring with different patterns were implemented on the aluminum substrates. The effect of laser texturing pattern on the bond performance of aluminum/epoxy adhesive joint was investigated by undertaking lap shear, modes I and II interlaminar fracture tests. The laser surface structuring developed micro-nano topography on the metal adherent and enhanced the interfacial area, mechanical interlocks and cohesive failure in the interface of bonded joint. The X-pattern with six successive passes of laser ablation offered the highest fraction of cohesive failure, lap shear strength, modes I and II strain energy release rates. In addition, the results of laser surface treatment were compared with those of an alkali-acid chemical treatment on the Al adherent. The laser treatment as compared to the chemical treatment presented superior bond performance in the aluminum/epoxy adhesive joints.
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Research context
OpenAlex topics: Mechanical Behavior of Composites · Metal and Thin Film Mechanics · Laser Material Processing Techniques
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (23)
Show source-provided references
1. Fracture behavior of a self-healing, toughened epoxy adhesive10.1016/j.ijadhadh.2013.02.015 ↗
2. Effect of surface treatment on adhesively bonded aluminium-aluminium joints regarding aeronautical structures10.1016/j.engfailanal.2017.10.010 ↗
3. Introduction of nanoclay-modified fiber metal laminates10.1016/j.engfracmech.2017.10.023 ↗
4. Reliability analysis of adhesively bonded CFRP-to-steel double lap shear joint with thin outer adherends10.1016/j.conbuildmat.2017.02.113 ↗
5. The effects of Al surface treatment, adhesive thickness and microcapsule inclusion on the shear strength of bonded joints10.1016/j.ijadhadh.2019.01.001 ↗
6. Improvement of adhesion performance between aluminum alloy sheet and epoxy based on anodizing technique10.1016/j.ijadhadh.2016.05.007 ↗
7. Effects of aluminum surface treatments on the interfacial fracture toughness of carbon-fiber aluminum laminates10.1016/j.engfracmech.2017.01.004 ↗
8. Strategies for the replacement of chromic acid anodising for the structural bonding of aluminium alloys10.1016/j.ijadhadh.2005.07.001 ↗
9. Role of surface oxide properties on the aluminum/epoxy interfacial bonding10.1021/jp310121e ↗
10. Effects of surface pre-treatment and void content on GLARE laminate process characteristics10.1016/j.jmatprotec.2010.01.017 ↗
11. Enhancing mode I inter-laminar fracture toughness of aluminum/fiberglass fiber-metal laminates by combining surface pre-treatments10.1016/j.ijadhadh.2017.08.008 ↗
12. Evaluation of mechanical interlock effect on adhesion strength of polymer–metal interfaces using micro-patterned surface topography10.1016/j.ijadhadh.2010.05.004 ↗
13. Effect of laser texturing on the surface characteristics and bonding property of 30CrMnSiA steel adhesive joints10.1016/j.jmapro.2019.09.046 ↗
14. Ultra-high-strength micro-mechanical interlocking by injection molding into laser-structured surfaces10.1016/j.ijadhadh.2010.03.008 ↗
15. Laser ablative surface treatment for enhanced bonding of Ti-6Al-4V alloy10.1021/am302293m ↗
16. Application of pulsed Yb: fiber laser to surface treatment of Al alloys for improved adhesive bonded performance10.1016/j.optlaseng.2019.03.017 ↗
17. International · 2010
18. Standard · 2012
19. AC09036782 · 2007
20. Surface treatment of CFRP: influence on single lap joint performances10.1016/j.ijadhadh.2018.06.008 ↗
21. A status report on delamination resistance testing of polymer–matrix composites10.1016/j.engfracmech.2007.03.012 ↗
22. On the analysis and design of the end notched flexure (ENF) specimen for mode II testing10.1177/002199838602000606 ↗
23. Mixed-mode ductile failure analysis of V-notched Al 7075-T6 thin sheets10.1016/j.engfracmech.2015.10.037 ↗