Subscribe options

Select your newsletters:


Please enter your email address:

@

News & Media

Latest ITER Newsline

  • Video | How does the ITER cryoplant work?

    Cold is essential to ITER—10,000 tonnes of superconducting magnets, the thermal shield that surrounds the machine, the cryopumps that achieve the high vacuum in [...]

    Read more

  • Component logistics | Consistency "from the cradle to the grave"

    There's a fun and easy way to demonstrate the importance of having all ITER parts properly tagged and identified in storage—organize a workshop and ask four com [...]

    Read more

  • Image of the week | Brewing storm

    In Provence, one gets tired of blue skies... so when the opportunity arises to capture the ITER site plunged in the darkness of an approaching storm, we rush to [...]

    Read more

  • Toroidal field coils | First cold test in Europe

    The first ITER toroidal field coil winding pack has spent nearly 20 days in a specially conceived cryostat at minus 193 °C (80 K), in a cold testing operation t [...]

    Read more

  • Central solenoid | All conductor received

    Officials from the US and Japanese fusion energy programs were at General Atomics' Magnet Technologies Center in California in early May to celebrate the delive [...]

    Read more

Of Interest

See archived articles

Lip Seal Project delivers first hardware

The Lip Seal Project team: Timmo Määta, Kalervo Leino, Esa Leskelä, Robin Le Barbier, Bruno Levesy and Jean-Pierre Martins. (Click to view larger version...)
The Lip Seal Project team: Timmo Määta, Kalervo Leino, Esa Leskelä, Robin Le Barbier, Bruno Levesy and Jean-Pierre Martins.
The ITER vacuum vessel will have 18 upper, 17 equatorial and 9 lower ports to allow access to the plasma for diagnostic, heating, pumping systems and maintenance. Welded "lips" made out of 2 mm thick stainless steel will seal the port plugs and confine the ultra-high vacuum inside the vessel.

An illustration showing the tig-welding of the lip seal... (Click to view larger version...)
An illustration showing the tig-welding of the lip seal...
In order to develop the appropriate cutting and welding techniques for the lip, the ITER Organization launched an R&D project together with the Finnish company VTT called the "Lip Seal Project." This week, the first two mockups arrived at the ITER site. They were manufactured at the VTT facility using a robotic arm especially adapted to the port's high-vacuum and nuclear environment.

...and the laser-welding technique. (Click to view larger version...)
...and the laser-welding technique.
The laser welded mockup successfully passed the tests for qualification and leak tightness, which was a big milestone for Bruno Levesy, the responsible engineer, and the team from VTT.

Click here to watch the movie on the Lip Seal welding technology produced by VTT.


return to the latest published articles