Re: case hardening depth measurement : Hello,
: Can some one tell me how to measure the case hardening depth in carbon steel in a rack and pinion. The thickness of case is 2-4-3.2 mm. Required to measure within +/- 0.1 mm. I read that eddy current can be used and standard equipments are available. Can some one throw some light on this. Any experience for such application would be most useful.
: S S Ananthan
Yes, Eddy Current techniques are the conventional Non-Destructive Test (NDT) method for "measuring" case depths in hardened gears.
I say "measured" in inverted commas because there is really no way that case depth can be measured.
Eddy Current techjniques detect parts that are different to acceptable production.
My company specialises in NDT techniques for manufactured components, and Eddy Current technique is one of our two main methods.
Case depth determination on gears is a standard eddy current application, with several automatic and semi-automatic machines in production facilities world-wide.
We will be pleased to discuss your application with you. Please contact me directly at the above address.
Please see our web site also, at www.hands-ndt.co.uk
With my best regards,