Download | - View accepted manuscript: Study of laser cold-wire welding of thick aluminum sheets along different gap size and laser-to-wire position (PDF, 2.4 MiB)
|
---|
Author | Search for: Mirakhorli, Fatemeh1; Search for: Nadeau, François1; Search for: Caron-Guillemette, Gabriel; Search for: Fakir, Rachid |
---|
Affiliation | - National Research Council of Canada. Automotive and Surface Transportation
|
---|
Format | Text, Article |
---|
Conference | Lasers in Manufacturing Conference 2019, June 24-27, 2019, Munich, Germany |
---|
Subject | laser cold-wire welding; gap tolerance; misalignment; thick aluminum sheet |
---|
Abstract | In recent years, there has been growing interest in joining thick aluminum sheets in various markets such as railcar, shipbuilding and aerospace. Laser cold-wire (LCW) welding was developed in this study to join 5.0 mm thick AA6005-T6 aluminum sheets in butt joint configuration. To investigate the gap bridging ability of LCW technique, a process parameter optimization was performed for three different gaps ranging from (I) 0.25-0.50 mm, (II) 0.50-0.70 mm and (III) 0.70-1.00 mm. The effect of a linear misalignment was also studied by applying a 0.75 mm misalignment (15% of the sheet thickness) during joint preparation. The result of this study showed that the LCW can easily sustain the gap and misalignment tolerances of 0.75 mm. The welded joint integrity with different gaps and misalignments was characterized in terms of the weld bead geometry, defects, macrostructure, hardness and tensile strength. |
---|
Publication date | 2019-06 |
---|
Publisher | German Scientific Laser Society |
---|
In | |
---|
Language | English |
---|
Peer reviewed | Yes |
---|
NRC number | NRC-AST-009 |
---|
Export citation | Export as RIS |
---|
Report a correction | Report a correction (opens in a new tab) |
---|
Record identifier | ae2f213d-cebb-4973-923f-765dbec9e3a0 |
---|
Record created | 2019-07-17 |
---|
Record modified | 2020-06-03 |
---|