| About this Abstract |
| Meeting |
2023 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2023)
|
| Symposium
|
2023 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2023)
|
| Presentation Title |
Novel Welding Strategies in High Deposition Rate Laser-Assisted Double-Wire Welding Process with Nontransferred Arc |
| Author(s) |
Kai Biester, Nick Schwarz, Jörg Hermsdorf, Stefan Kaierle |
| On-Site Speaker (Planned) |
Kai Biester |
| Abstract Scope |
Laser-assisted double wire welding with non-transferred arc melts the material using an arc between two conveyed wires. Driven by gravity the molten metal drops onto the substrate. A laser beam is oscillated on the melt pool to bond the weld beads to the substrate without undercuts. Claddings at high deposition rates (11.64kg/h) were performed with 316L on mild steel. The first welding strategy (AAA) is to weld adjacent beads (A) with a varied track spacing of 7 to 9mm. The second strategy (ABA) consists of beads (A) welded at a distance of 14 to 18mm from each other, so that a third bead (B) can be deposited in the space between. Claddings with the determined track spacing for AAA of 9mm and ABA 18mm were created in order to compare the resulting surface properties. The ABA cladding achieved a more uniform surface and less waviness than the AAA cladding. |
| Proceedings Inclusion? |
Definite: Post-meeting proceedings |