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A PLUS for the USLT 2000

The software program EHT is an additional

module for the ultrasonic test system

USLT 2000 that can be easily installed

as an optional „Plug-In“. This additional

software extends the range of functions

of the USLT 2000; new ﬁelds of applica-

tion are opened up.

The EHT module (effective hardening

depth) is used for the nondestructive

measurement of hardness penetration

depths of thermally hardened steels.

The method presents numerous beneﬁts:

The aspect of economic efﬁciency plays

an important part, especially when com-

pared with the conventional destructive

tests. Moreover, the EHT module enables

to carry out quite a large number of

measurements without any problem.

Krautkramer SoftwareProgram

Module EHT

... for nondestructive measurement of hardness penetration depth

The method

The nondestructive determination of hard-

ness penetration depths is carried out

according to the ultrasonic backscatter

method. This method makes use of the

fact that the mean grain size is reduced

by the hardening process.

If an ultrasonic wavelength is selected

which is just a little larger than the grain

size in the hardened area and somewhat

smaller than the grain size in the base

material, scatter indications from the

transition area can be measured - and

consequently also the hardness penetra

tion depth.

A quick and easy evaluation is possible

using the EHT software. Firstly, the char

acteristic of the scatter indications is

smoothed, and then the hardness pen-

etration depth is recorded on the basis of

the variable threshold value.

The applications

The method works reliably with most of

the thermal hardening methods, for ex

ample with ﬂame-hardening and induc-

tive hardening.

The following ﬁelds of application are

presented for the EHT module:

• Production control in hardening shops

• Incoming inspection within the auto

motive industry, shipbuilding, aircraft

construction, within the general

mechanical engineering (for example

on hardened camshafts, crankshafts,

hydraulic cylinders)

For different applications, the probe

must be adapted to the geometry and the

frequency must be adapted to the micro

structure of the material to be tested.

Krautkramer SoftwareProgram 1

Summary of Contents

Page 1 - Krautkramer SoftwareProgram

GE USLT Series Brochure

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GE USLT Series Brochure

Browse online or download Brochure for Unknown GE USLT Series. GE USLT Series Brochure User Manual

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More documents for Unknown GE USLT Series

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