#27 – A masterclass on friction welding with TWI's Bertrand Flipo

In this episode I am speaking to Bertrand Flipo from The Welding Institute in Cambridge, UK. TWI Global has a long history of innovation in welding research, having been established as the British Welding Research Association in 1946. TWI is a world leader in research on friction welding and has been at the forefront of many modern friction welding processes. Briefly put, friction welding is a joining technique that does not melt the parts to be joined. Instead, two components are rubbed together to create heat through friction, and high pressure is then applied to squeeze the two pieces together. During this process the material plastically deforms and the high pressure causes the components to be fused together. Advantages of the process are fast joining times, typically on the order of a few seconds; relatively small heat-affected zones; and because friction welding techniques are melt-free, the material's microstructure can be maintained. I personally learned a lot during the recording of this episode, and Bertrand and his colleagues were very gracious to introduce me to the ins and outs of friction welding. So in this episode you will learn about:

• the differences between different friction welding techniques
• the main advantages of friction welding and the challenges to keep in mind
• some of the aerospace applications where friction welding is a game-changer
• and much, much more

If you want to learn more about the topics discussed in this episode, then you can find show notes with links to more in-depth material on the aerospace engineering blog. If you want to support the show then please leave a review; share it on social media with your friends and family; or support the podcast directly on Patreon. Thanks a lot for listening!

This episode of the Aerospace Engineering Podcast is brought to you by my patrons on Patreon. Patreon is a way for me to receive regular donations from listeners whenever I release a new episode, and with the help of these generous donors I have been able to pay for much of the expenses, hosting and travels costs that accrue in the production of this podcast. If you would like to support the podcast as a patron, then head over to my Patreon page. There are multiple levels of support, but anything from $1 an episode is highly appreciated. Thank you for your support!

This episode is also sponsored by StressEbook.com, which is an online hub for you if you are interested in aerospace stress engineering. StressEbook.com provides world-class engineering services and online courses on the stress analysis of aircraft structures, as well as a free ebook and blog. No matter if you're a junior or senior structural analyst, stressEbook.com provides you with the skills and know-how to become a champion in your workplace.