SWEET!

Apr 28, 2006 12:25

I am happy! I thought I needed an 80% on the next test to pass metallurgy. Turns out I only need a 65% (a pass is a 60% in my course). Also, I didn't think that we would have enough time over the next semester to finish our TRs, but one teacher is only teaching for 2 months, and then his periods become free time. More TR time. I also finished all ( Read more... )

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cibressus April 28 2006, 18:41:21 UTC
The math isn't that hard, it's the 125 tests that are hard :(

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cibressus April 28 2006, 18:44:23 UTC
I looked up the process, some more, so what, your just putting a diamond shaped indent into the material with a force less then 1kgf then looking at how the material arround the diamond moves?

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icehawk101 April 29 2006, 04:57:51 UTC
I was actually using a 300g weight. The trouble was that the tester we have is rather old. The plunger was damaged, and actually came right apart today, making it even worse. Thankfully I only had one to do like that. Another reason is that I was taking th hardness of the heat affected zone right next to the fusion boundary. This was ok at high heat inputs, but when you get to the lower ones, the fusion boundary becomes less defined and it is difficult to see. This results in missing where you are trying to take the hardness and having to try again. And lastly, the eyepiece is dark for some reason. I don't know why, you'd think it would be bright to contrast with the lines that you measure by, but it's not. This makes the lines hard to see and hurts the eyes after a while. Other than that though, it's easy. If we had a newer machine with a lighter lense, than some of the problems would be gone. Not much that can be done for the heat inputs though, since they are specified that way.

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icehawk101 May 31 2006, 11:21:35 UTC
By The Way, I failed metallurgy by 2%

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