| 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 |
Process-integrated Alloy Adjustment in Laser Deposition Welding with Two Wires |
| Author(s) |
Laura Budde, Nick Schwarz, Jörg Hermsdorf, Stefan Kaierle, Ludger Overmeyer |
| On-Site Speaker (Planned) |
Laura Budde |
| Abstract Scope |
For DED with wire as filler material, the material selection is mostly limited to commercially available welding wires. This limits the achievable material properties for cladding and Additive Manufacturing purposes. Using a coaxial deposition welding head, in which two different wires can be fed and controlled individually, the alloy composition can be adjusted in the common process zone in-situ.
In this study, the two wire materials X2CrNiMo19-12 and G4Si1 are used in different mixing ratios to fabricate single weld seams. The different mixing ratios are achieved by varying the wire feed rates. The material content in the weld is varied between 0% and 100% in 20% steps. The weld seams are examined with regard to the distribution of alloying elements, hardness and microstructure. Homogeneous mixing of the two materials was achieved at all mixing ratios. The hardness depends on the mixing ratio and varies between 170HV0.1 and 428 HV0.1. |
| Proceedings Inclusion? |
Definite: Post-meeting proceedings |