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"One of the items I ordered was Inconel-X, I received a 3-inch diameter cylindrical billet of the material and took it to the machine shop to have a 3-inch piec
by JKCalhoun 3y ago
"One of the items I ordered was Inconel-X, I received a 3-inch diameter cylindrical billet of the material and took it to the machine shop to have a 3-inch piece cut off to make a bearing. The shop foreman fired up a band saw and started to cut the billet. He only managed to make a small groove in the billet before the cutting action stopped. The Inconel-X had destroyed the saw teeth in just a few seconds. The foreman then tried a large power hacksaw. Those saw teeth also disappeared. I then foolishly suggested he try cutting a chunk off with a cutting torch. He fired up his cutting torch and within a couple minutes we had a billet of metal that looked like taffy."
At the Edge of Space: the X-15 Flight Program
- SAI_Peregrinus 3y agoEdge Precision on Youtube posted some videos showing making a valve body out of Inconel. It's clearly a PITA, he indexes the insert (changes the cutting edge to a new one) for every single cut. That adds a lot of time, and a decent amount of expense (carbide cutting tool inserts are cheap, but not free).
- teepo 3y agoThis is what black boxes should be constructed with.
- tired_star_nrg 3y agoIf you look at the Wikipedia for Inconel, it does actually mention that it is used as the engraving medium for black boxes: https://en.wikipedia.org/wiki/Inconel https://en.wikipedia.org/wiki/Inconel