About this Abstract |
| Meeting |
MS&T26: Materials Science & Technology
|
| Symposium
|
Joining/Bonding of Dissimilar Materials
|
| Presentation Title |
High Throughput Collision Weld Optimization Via Laser Impulse Welding of Dissimilar Foils |
| Author(s) |
Blake D. Barnett, Frank De Lucia, Jeffrey Lloyd, Michael Rupinen, Jonathan Ligda |
| On-Site Speaker (Planned) |
Blake D. Barnett |
| Abstract Scope |
2 mm diameter Copper, Titanium, and Aluminum foils (25-125 microns thick) were used as flyer sheets for Laser Impulse Welding (LIW) to Copper, Titanium, and Aluminum targets of equal or greater thicknesses. Flyer velocities were controlled by varying the energy of an 8 ns, 2 mm diameter top hat laser pulse. Photon Doppler Velocimetry was augmented by video recorded on a high-speed framing camera which allowed measurement of flyer trajectory, shape evolution, and collision angles at up to 5 M frames per second. Systematic variation of impact conditions across weld pair permutations provided a parametric study of these variables’ influence on weld quality and the onset of defects near the boundaries of the weld processing window. |