Caterpillar weld inspection student project (2015)

In fact, I have a student at Caterpillar, and he's been told to come up with a new physical inspection technique to inspect filler welds. Everybody's already taken all of the electromagnetic spectrum and the mechanical wave frequency spectrum to do inspection of welds. But he's supposed to find some new physical thing. They emailed me this week — he went out to operations and talked to this manager, and she said she didn't really want a new inspection technique, because it would be a new specification that she would have to meet. That happened to me 30 years ago at Electric Boat. I had a better way to inspect welds, and they threw me out of the shipyard practically, because the last thing they wanted was a new criterion they had to meet.