where expertise comes together - since 1996 -

The Largest Open Access Portal of Nondestructive Testing (NDT)

Conference Proceedings, Articles, News, Exhibition, Forum, Network and more

where expertise comes together
- since 1996 -
1655 views
Technical Discussions
S S Ananthan
Consultant,
RAA Tech Solutions, India, Joined Jun 2000, 36

S S Ananthan

Consultant,
RAA Tech Solutions,
India,
Joined Jun 2000
36
07:16 Dec-23-2000
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.

Thanks.

S S Ananthan


    
 
 Reply 
 
Godfrey Hands
Consultant,
PRI Nadcap, United Kingdom, Joined Nov 1998, 302

Godfrey Hands

Consultant,
PRI Nadcap,
United Kingdom,
Joined Nov 1998
302
08:32 Dec-23-2000
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.

: Thanks.

: S S Ananthan

Hello,
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,

Godfrey Hands




    
 
 Reply 
 
Hadi Elhami
Hadi Elhami
08:17 Mar-07-2001
Re: case hardening depth measurement
: Hello,

: Can some one tell me how to measure the case hardening depth in carbon steel for replacing 1040 steel with 4041 or 4043 in hardness?

: Thanks.

: H Elhami




    
 
 Reply 
 
S.V.Swamy
Engineering, - Material Testing Inspection & Quality Control
Retired from Nuclear Fuel Complex , India, Joined Feb 2001, 787

S.V.Swamy

Engineering, - Material Testing Inspection & Quality Control
Retired from Nuclear Fuel Complex ,
India,
Joined Feb 2001
787
01:54 Mar-08-2001
Re: case hardening depth measurement
The case hardening depth is usually measured by microstructure study of the cross-section or by a chemical analysis at different depths. Both these tests are destructive. Eddy Current test can be standardised with the help of the above and can be used as a NDT method for production testing, with occassional corss-checks of coupons - Swamy


: : Hello,
.
: : Can some one tell me how to measure the case hardening depth in carbon steel for replacing 1040 steel with 4041 or 4043 in hardness?
.
: : Thanks.
.
: : H Elhami
.



    
 
 Reply 
 

Product Spotlight

SONOAIR - air-coupled Phased Array Ultrasonic Inspection System

For highly attenuating materials, the performance of the system is critical. The ultrasonic sensors,
...
the scanning area and the system settings should be flexibly adapted to the test task and the material. These high expectations are met with the new and modular testing system SONOAIR. With the world’s first air-coupled phased-array UT inspection system SONOAIR we developed a technology that works with up to 4 transmitter and receiver channels with freely configurable square wave burst transmitters as wells as low noise receiving amplifiers.
>

Magnetic X-Ray Pipeline Crawler

Zhong Yi brand pipeline crawler is magnetic/micro-video controlled crawler with DC X ray unit inst
...
alled for checking welding of pipeline. Move steadily inside the pipeline 6''-60''diameter with speed of up to 18m/min, Max. moving diatance 5 kilometers and provide the efficient inspection of the pipeline.
>

Robotic laser shearography enables 100% inspection of complex, flight-critical composite structures

An article in “Composites World Magazine” showcases Non Destructive Testing of aero-structures
...
with Laser Shearography. Over the years Dantec Dynamics has supplied many solutions for the aerospace industry. Referring to specific customer projects several of these cases are examined to outline the advantages of using Laser Shearography for automated defect detection.
>

Ultrasonic Testing Immersion Tanks with Unmatched Scanning Features

TecScan’s non-destructive testing Ultrasonic Immersion Tanks & scanners are designed for high pe
...
rformance and demanding NDT testing applications. Our Scan3D™ line of High Precision Immersion Tanks are specifically designed for automated ultrasonic testing of complex composites parts used in aerospace and industrial applications.
>

Share...
We use technical and analytics cookies to ensure that we will give you the best experience of our website - More Info
Accept
top
this is debug window