The University of Leicester, in partnership with welding specialist TWI Ltd, is leading the development of the UK\u2019s first robotic welding capability for use in space.<\/p>\n
The project, called ISPARK (Intelligent SPace Arc-welding Robotic Kit), has secured \u00a3560,000 in funding\u00a0 \u2014 including \u00a3485,000 from the UK Space Agency\u2019s National Space Innovation Programme (NSIP).<\/p>\n
Under this initiative, experts will create a robotic arc-welding system that can be mounted on a robot to perform in-space repair, joining, and manufacturing.<\/p>\n
It will be specifically designed to work in the extreme challenges of space, including vacuum, microgravity, and thermal instability.<\/p>\n
Robotic welding technology\u00a0<\/p>\n
Currently, if a satellite breaks or a large structure needs to be built, the entire component must be designed to fit on a rocket and survive the extreme forces of launch.\u00a0<\/p>\n
Welding in space removes these limitations. However, it is not a straightforward task, and it becomes brutally difficult.\u00a0<\/p>\n
It faces a host of extreme and dangerous factors: vacuum, microgravity, intense thermal instability, and high radiation.\u00a0<\/p>\n
Astronauts would face severe physical strain while performing welding tasks under these harsh conditions.\u00a0<\/p>\n
For decades, these barriers have made in-orbit repair incredibly rare and complex, pushing space agencies toward a costly \u201cuse and discard\u201d paradigm.\u00a0<\/p>\n
ISPARK is here to change that with new, space-qualified robotic welding technology.\u00a0<\/p>\n
Dr Daniel Zhou Hao, Principal Investigator from the University of Leicester, emphasized the project\u2019s global impact. He said, \u201cBy combining Leicester\u2019s strengths in AI robotics and space engineering with TWI\u2019s world-leading welding expertise, we are developing an enabling technology that could redefine how large structures are built and maintained in orbit.\u201d<\/p>\n
The key to mastering these cosmic conditions lies in digital-twin modelling.<\/p>\n
Scientists will simulate the harsh vacuum and complex thermal environments of space on Earth.\u00a0<\/p>\n
Every robotic weld performed in the lab will be validated against this digital model, ensuring the technology is robust enough for real-world application before it ever leaves the atmosphere.<\/p>\n
Professor Dirk Schaefer, Pro-Vice-Chancellor at the University of Leicester, framed ISPARK as a milestone in this new era. <\/p>\n
\u201cDeveloping the UK\u2019s first in-space robotic welding capability is not only a scientific and engineering milestone, but it also supports a more responsible and resilient space economy,\u201d he explained.<\/a>\u00a0<\/p>\n This technology promises to reduce waste, extend mission lifetimes, and enable the eventual construction of larger, more complex orbital infrastructure, from advanced telescopes to future space stations.\u00a0<\/p>\n Other initiatives for welding in orbit<\/p>\n Efforts to develop space-based welding systems for satellite repair and extended mission life are global, with several teams actively pursuing this technology.\u00a0<\/p>\n For instance, US-based ThinkOrbital<\/a> has successfully demonstrated the world\u2019s first autonomous in-space welding system through experiments.\u00a0<\/p>\n