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Hardness tester
- Thread starter lightman
- Start date
- Joined
- Aug 4, 1999
- Messages
- 2,596
I hate to say this but good hardness testers cost $$$$!
There is a new kind available now that drops a hardened ball on the material and measures the bounce inside of a plastic tube. Somehow this gives a Rc reading that the manufacturer claims is accurate within two points. The only probelem with this is they only claim it is accurate on materials thicker that 1/4".
We have portable hand held units at work. They work good and are accurate but they cost around 2K! Having them serviced is also expensive.
I have always had access to Rockwell testers over the years working as a machinist and STILL don't have my own!
Neil
------------------
Update in process! New knives, pictures, Sheaths!!
http://www.geocities.com/Eureka/Meeting/5520/index.html
There is a new kind available now that drops a hardened ball on the material and measures the bounce inside of a plastic tube. Somehow this gives a Rc reading that the manufacturer claims is accurate within two points. The only probelem with this is they only claim it is accurate on materials thicker that 1/4".
We have portable hand held units at work. They work good and are accurate but they cost around 2K! Having them serviced is also expensive.
I have always had access to Rockwell testers over the years working as a machinist and STILL don't have my own!
Neil
------------------
Update in process! New knives, pictures, Sheaths!!
http://www.geocities.com/Eureka/Meeting/5520/index.html
Dr Lathe
Thanks for the information, I was hoping there was something reasonable out there. My interest is in the hardness of saw blades. I recycle old saw blades and make wood carving knives from them. The blades seem to hold up to a lot of hard wood carving and keep a good edge.
Thanks again,
Lightman
Thanks for the information, I was hoping there was something reasonable out there. My interest is in the hardness of saw blades. I recycle old saw blades and make wood carving knives from them. The blades seem to hold up to a lot of hard wood carving and keep a good edge.
Thanks again,
Lightman