Subscribe to our newsletter to receive the latest news and events from TWI:

Subscribe >
Skip to content

New TWI JIP Validating Out-of-Chamber Electron Beam Welding

Wed, 06 July, 2022

We are launching a new joint industry project (JIP) to qualify and codify out-of-chamber electron beam welding for the fabrication of offshore wind turbine support structures.

Out-of-chamber electron beam (EB) welding offers the possibility of significantly reducing the cost of fabricating tubular structures such as monopiles while also providing a potential for long fatigue lifetimes.

Recent project work from TWI has shown that out-of-chamber EB welding can join thick section steels in a single pass while delivering exceptional mechanical properties and fatigue strengths at least as good as from the equivalent submerged arc welds (SAW).

With estimated productivity increases of 80% when compared to SAW and significant material cost savings, not to mention improved fatigue resistance, the validation of this process would allow it to be used for wind turbine support structure fabrication.

The JIP is open for more partners to join, offering you the opportunity to help guide the direction of the project and gain state-of-the-art knowledge, while networking with other interested businesses and organisations.

You can find out more about this joint industry project here.

We are holding a hybrid project launch meeting for you to find out more about this project on 27 September 2022.

If you would like to register to attend the event, please email

For more information please email: