Does Case Hardening Change the Natural Frequency?
Does Case Hardening Change the Natural Frequency?
(OP)
I would like to know if there is any information about case hardening steel either by carburizing or induction hardening changing the natural frequency of a steel bar.
Ed Danzer
www.danzcoinc.com
www.dehyds.com





RE: Does Case Hardening Change the Natural Frequency?
www.EngineeringMetallurgy.com
RE: Does Case Hardening Change the Natural Frequency?
You are also radically changing the residual stress conditions.
= = = = = = = = = = = = = = = = = = = =
Plymouth Tube
RE: Does Case Hardening Change the Natural Frequency?
We have tried a material that has a 100,000 yield core and a 50 RC induction hardened case and it vibrated like a tuning fork.
Is it also correct that the heat treat does not actually change the deflection amount until you get close to yield on carbon steel bar?
Ed Danzer
www.danzcoinc.com
www.dehyds.com
RE: Does Case Hardening Change the Natural Frequency?
www.EngineeringMetallurgy.com
RE: Does Case Hardening Change the Natural Frequency?
RE: Does Case Hardening Change the Natural Frequency?
The catch may be how to surface harden the part without getting full heat treatment.
What if you used higher carbon steels, simply normalized, then surface induction hardened them?
Steel HT guys, what do you think?
= = = = = = = = = = = = = = = = = = = =
Plymouth Tube
RE: Does Case Hardening Change the Natural Frequency?
Ed Danzer
www.danzcoinc.com
www.dehyds.com
RE: Does Case Hardening Change the Natural Frequency?
W and Mo are not only stiffer, but also dampen very well.
For long bars there isn't anything better.
= = = = = = = = = = = = = = = = = = = =
Plymouth Tube