Friction stir welding (FSW) has proven to be a cost-effective, safe and environmentally friendly method for joining aluminium structures for the rail industry.

Member News: TWI Highlight About The Friction Stir Welding of Aluminium for the Rail Industry - The Aluminium Federation

The performance of the welds used for railcars is particularly important with regards to crash safety, where investigations found that the most like place for the structure to fail was along the weld line where heating undermines the mechanical properties. TWI has engaged in a number of different research projects to test joint designs and procedures that can overcome joint weaknesses in rolling stock.

These considerations are increasingly important as trains reach ever-greater speeds and manufacturers aim to reduce weight, provide end-of-life material reuse solutions, and maintain the aesthetic appeal of vehicles.

You can find out more about the use of FSW for railcar manufacture, here:

https://www.twi-global.com/media-and-events/press-releases/2024/friction-stir-welding-of-aluminium-for-the-rail-industry

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