| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Ahmed Obeidi, Muhannad
Dublin City University
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (14/14 displayed)
- 2021CO2 laser polishing of laser-powder bed fusion produced AlSi10Mg partscitations
- 2020Comparing the adhesion strength of 316L stainless steel joints after laser surface texturing by CO2 and fiber laserscitations
- 2020Comprehensive assessment of spatter material generated during selective laser melting of stainless steelcitations
- 2020Experimental and empirical model analysis of microsurface texturing on 316 L press-fit joints fabricated by selective laser meltingcitations
- 2019Laser Polishing of Additive Manufactured 316L Stainless Steel Synthesized by Selective Laser Melting
- 2018Investigating the effect of the high power and high speed CO2 laser surface melting on the residual stresses and corrosion resistance of 316L stainless steel
- 2018Laser surface texturing of stainless steel 316L cylindrical pins for interference fit applications
- 2018Laser surface processing with controlled nitrogen-argon concentration levels for regulated surface life time
- 2017Surface roughness control by extreme ultraviolet (EUV) radiation
- 2017Laser surface texturing of stainless steel 316L cylindrical pins for interference fit applicationscitations
- 2017Laser surface processing with controlled nitrogen-argon concentration levels for regulated surface life timecitations
- 2017Laser Surface Texturing for High Control of Interference Fit Joint Load Bearing
- 2016Methodology of laser processing for precise control of surface micro-topology
- 2016A Review of Semi-Solid Aluminium-Steel Joining Processes
Places of action
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article
Laser surface texturing of stainless steel 316L cylindrical pins for interference fit applications
Abstract
This study is focused on the development of a novel method for designing high-end interference fit fasteners. In this work, a new surface laser treatment process was utilized to enable enhanced usability and bond strength control of press-fit connections. Cylindrical 10 mm diameter pins of 316L were textured over a 10 mm length using a pulsed CO2 laser beam focused one millimeter below the surface, with the thermal energy adjusted to bring the surface to just above the melting point of the metal. The pin surface morphology and dimensions were precisely controlled by controlling the laser processing parameters specifically the laser beam power, the pulse repetition frequency, and the overlap between scan tracks. The pin was inserted into a hub hole diameter of 10.05 ± 0.003 mm and pull out joint bond strengths were examined. The results of this study showed that surface thus altered provided improved control of the bond strength which is a particular novelty of this new interference fit joining method. Surface roughness, Ra, from 40 to 160 μm, melt pool depths from 0.4 to 1.7 mm, increases in the pin outer diameter from 0.5 to 1.1 mm, and pull out forces of up to 7.51 kN were achieved. The bond joint was found to re-grip before final failure providing a more secure joint and increased safety. This joining method allows for the possibility of joining different materials. The pulse repetition frequency was measured to be the most significant processing parameter for control of the resulting mechanical properties and the bond strength with a clear inverse relationship.