CIRCWELD - Circular Sub-Sea Infrastructure: Enabling Low-Carbon Welding and Repair Through FSW
This feasibility study explores the use of Friction Stir Welding (FSW) as a sustainable, energy-efficient, and resilient manufacturing technology for the welding and repair of sub-sea high voltage cables and conductors.
FSW is a solid-state joining process that produces high-integrity joints with minimal energy input, no filler materials, and low greenhouse gas emissions. The project will assess the technical and economic feasibility of adapting FSW for underwater cable systems—focusing on material compatibility, process reliability, and repair logistics. The goal is to extend product life cycles, reduce emissions across the cable value chain, and strengthen supply chain resilience through circular strategies in maintenance and repair of critical energy infrastructure.
Research Area
- Materialteknik
Research environment / Institution
- Primus (KK-miljö)
- Institutionen för ingenjörsvetenskap
Project leader
Research Partner
- NKT
- DOF Tools AB
Research funding
- Vinnova
Project time
2025 - 2026