On Nov. 22, 2010, ASME/SAE and Pi Tau Sigma organized a trip to a local factory called Manufacturing Technology, Inc., which provides worldwide joining and welding solutions with friction welding technique.
Attached is a brochure of the company, containing the introduction of their business and service. Their customers include Boeing, Chrysler, Porsche, BMW, Apache, etc. Besides the factory in South Bend, IN, they also have branches in England and India.
Please visit their website at http://www.mtiwelding.com/
There are some very cool videos online to demonstrate the friction welding process. They can be found at http://www.mtiwelding.tv/videos/index/17
If you are interested in visiting them, please find the contact information on their official website. The South Bend site is ten minutes away from Notre Dame if driving.