It was news in May that the Acela trains had "cracked brake disks", but there haven't been many details. About the best I have seen are:
http://host18.hrwebservices.net/~myjackp/may1205.html and
http://www.washingtonpost.com/wp-dyn/content/article/2005/05/11/AR2005051102089.html
Can anyone...
I have an application where one end of a ~12" length of 8x6mm Perfluoralkoxy PFA ultra high purity tubing is continuously cycled about 3/4" sideways (+/- 3/8"). I can find "MIT Flexural Life" (ASTM D2176) properties of PFA that report 200,000 cycles of life. I believe that the MIT tester is...
I was web-shopping for cheap Gillette Mach3 razor blades, and ran across the site http://greatrazors.zoovy.com/category/xx/ that advertises long lasting razor blades that are simply Gillette blades that have been cooled to -300°F for 24 hours (in the original box, no less! Read the site FAQ.)...
I have an application where I need a nonmagnetic (or very low permeability) bar with a yield strength of at least 250ksi (but 275 would be better). The bar is 0.25 x 0.4 x 6 inches, and is currently 440C.
I've seen a few possibilities that have the strength and low permeability (PH15-7Mo) but...
I've been teaching ME students the use of Raimondi & Boyd's Sommerfeld number -> dimensionless variable charts for years. The method is in every machine design text, but I am curious as to if anyone actually uses it in practice. It doesn't appear to have changed much since 1958 (not that...
I've been teaching ME students the use of Raimondi & Boyd's Sommerfeld number ->
dimensionless variable charts for years. The method is in every machine design text,
but I am curious as to if anyone actually uses it in practice. It doesn't appear to have
changed much since 1958 (not that...
I've been teaching ME students the use of Raimondi & Boyd's Sommerfeld number -> dimensionless variable charts for years. The method is in every machine design text, but I am curious as to if anyone actually uses it in practice. It doesn't appear to have changed much since 1958. I would...
