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  1. KnifeKnut

    Crevice Corrosion Caused by a Oil Film ?

    Long ago, when i worked in fast food, I hated the sheila shine that they wanted us to used on non food contact areas for this very reason, simply because it looked shinier at first. It would trap all the dust from the nearby road and adjacent car wash vaccums pulled inside by the ventilation...
  2. KnifeKnut

    Dissimilar metals and lubrication.

    Militech-1 might solve your lubrication problem needs. It is not a lubricant, but it reduces surface friction between metal surfaces. Unoffically, Infantrymen love it for their guns as an alternative to no lubrication at all on rifles as it does not attract dust in the desert.
  3. KnifeKnut

    How to find the shock loads from a pig scalder machine

    I dont know a darn thing about this subject, (wannabee engineer) so here is a diferent perspective: Isnt this sort of thing handled perfectly by a flywheel? I know that is rather old school, but If I understand the problem properly, it would have the effect of damping the system through brute...
  4. KnifeKnut

    Ball Bearing Manufacture

    http://www.sheldonbrown.com/rinard/ball.htm http://yarchive.net/metal/ball_bearing_manufacture.html
  5. KnifeKnut

    crystalization result of impact with metal hammer???

    The heat treat was definately to blame.
  6. KnifeKnut

    crystalization result of impact with metal hammer???

    If you use brass or copper hammer head you get two benefits. The tools being struck do not mushroom, and the softness of the metal acts as a deadblow, transfering more energy to the struck tool.
  7. KnifeKnut

    Demolishing large cast iron.

    Well be sure to keep us updated as to whether the 800 ton shear works, or if the scrap yard has to get creative!
  8. KnifeKnut

    Birdstrike Analysis

    Turkey http://wildlife.pr.erau.edu/Pictures3.htm Hawk? http://www.americanaeroservices.com/images/BomberBill/bird%20strike.jpg Pigeon http://www.americanaeroservices.com/images/BomberBill/bird%20strike.jpg
  9. KnifeKnut

    How to quickly I.D. a part as Magnesium

    Finding it's density by dunking it and doing the math?
  10. KnifeKnut

    Die cleaning for for SS stamping

    I think you should get a second die. If it were so easy to decontaminate tooling, there would not be so many procedures and reqirements for prevention of conaminating stainless.
  11. KnifeKnut

    Keep razor blades sharp

    Highly reactive metals are often kept imersed to prevent oxidation. Wax sometimes is used for long term cutlery storage. However, the wax would prevent the blade from slipping smoothly across the skin unless removed first. Eureka! How about food grade light mineral Oil. It is usually labled as...
  12. KnifeKnut

    Keep razor blades sharp

    What if you stored the blades in Everclear, AKA maximum proof grain alchohol?
  13. KnifeKnut

    casting 440C stainless steel hardness

    Flounder, You were getting carbide separation. This method is used in some knife blades. The carbide separation along with the dendritic structure makes for a "toothy" edge when sharpened. I did search, and came up with the same awnser you did: anneal first...
  14. KnifeKnut

    How to increase 304 SS hardness

    420 stainless perhaps?
  15. KnifeKnut

    atomizer (liquid to powder)

    Take a look at Crucible's Crucible Particle Metalurgy steels. Very high wear resistance in a stainless steel. CPM90V CPM60V and CPM30V http://www.crucibleservice.com/datash.cfm Also Have you looked at the various conventional stainless Cutlery Steels? Most of these are based on 440C with higher...

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