Published On Sep 3, 2019
I bought some HSS stub drills, and treated half of them with liquid nitrogen, which improved their wear resistance dramatically. I also look at the change in microstructure with an electron microscope.
Performance of cryogenically treated M35 HSS drills - http://sci-hub.ru/10.1007/s00170-011-...
Performance of cryogenically treated HSS tools - http://sci-hub.ru/10.1016/j.wear.2006...
Effects of Cryogenic Treatment on the Strength
Properties - http://sci-hub.ru/10.1088/1757-899X/2...
LN2 generator video: • Liquid Nitrogen Generator - Overview
Heat treatment of steel video: • Intro to heat treatment of steel (har...
Source of drill bits: https://www.mcmaster.com/catalog/125/...
Temperature logger (discontinued, unfortunately): https://www.adafruit.com/product/3081
3M fine polishing pads: https://www.amazon.com/Tri-M-Ite-Poli...
Delorean patent on cryogenic torsion bar: https://patents.google.com/patent/US4...
Steel grain structure inspection, and overall great channel for material analysis: • Metallography Part II - Microscopic T...
Steel grain structure video: • Grain Structure of Steel
Applied Science on Patreon: / appliedscience