Hey Kids! Let's make a DE razor blade!

[grepper]

Gotta love those how it's made videos!
https://youtu.be/e9PnTPIKd3g

[Jan]

Gotta love those how it's made videos!
https://youtu.be/e9PnTPIKd3g

Thanks for posting the link, Grepper, really interesting video.
 
The next video which YouTube offered me was: "How to make Straight Razors"
https://www.youtube.com/watch?v=BBoI1hmYfbs
It is at least as interesting as the one before, plus closer to our activities. I have enjoyed it very much.

Below I am attaching relevant scanning electron microscope image made available by scienceofsharp.

   
Jan

[Rupert Lucius]

Gotta love those how it's made videos!
https://youtu.be/e9PnTPIKd3g

That’s a good one – Who would ever know what is required for making just a simple razor blade. 

Thanks!

[grepper]

Ready for hours of fun?  Let's make a Case knife!

Note the deburring process shortly after 5:30 into the video.  Looks like some sort of cloth wheel.
https://www.youtube.com/watch?v=hwOhht9Jkg4

IMHO there must be a faster, more efficient and effective method of burr removal than rubbing a blade on a leather strop, which I have found to be neither efficient or particularly effective.  I've checked blades under a microscope after stropping on leather to remove burr, and there is always some remaining burr.  Honestly and oddly, stropping on my jeans on my thigh actually works better.

[Jan]

Mr. Grepper, shortly after 6:00 it is mentioned that they use glazing wheels. In my thinking such a stropping disc can be made of pure wool or some synthetic replacement.
 
For me stropping without any compound is blade burnishing. Burnishing is different from abrasion and refers to movement of metal towards the edge. Burnishing can heal some minor defects of the edge. From the metallurgical point of view it is plastic flow.
 
Jan