The quick breakdown:
- 52100 Steel, through-hardened to a martensitic phase for bearings.
- Material from other sources with this part # are running fine, but this specific batch of material is growing/shrinking all over the place, going way out of round and out of flat.
- Cut and polished a...
So I've been tasked with coming up with controls for a stainless steel passivation line, and one of the requirements is a weekly check of the concentration in a tank of alkali cleaner/degreaser.
Our machine operators have digital refractometers that they use to check the concentration of their...
Analyzing a very large round gear (~15 feet across) that has teeth case hardened to ~.100-.150 case depth.
The teeth are on the inner circumference of the round gear. Induction hardening does an "every other gap" process when case hardening the gear teeth. On the second pass, the areas not...
So I work for a small bearing company that recently (~6 months ago) got an induction hardener to through harden stainless steel bearing races. Predictably, the faster production rate has the production manager trying to cram anything and everything that they can run into this machine. (The...
Dear Engineering Hive Mind of the Internets,
I currently work for a facility that through-hardens 440c small Bearing Races via Induction Hardening.
Recently, a part that was "only soft on one side" was brought to me for analysis. After polishing/microhardness/etch, there is a visibly "shiny"...
Greetings,
Background: We currently use an induction hardening process to through-harden very thin (~.25 in) bearing races, normally 440C and polymer quenched.
Recently, we have started using this process on our 52100 bearings as well, to limited success. We have seen improvements in our...
While I have plenty of experience with low-carbon steel microstructures, I have only recently begun working with stainless steel (specifically, 440c.)
I have been trying to polish and etch a few samples that based on the heat treatment of the cycle should be mostly martensitic in nature. (Thin...
