Product category:
Materials testing equipment
News Release from: Indentec Hardness Testing Machines | Subject: ZHV
Edited by the Engineeringtalk Editorial
Team on 16 January 2004
Vickers hardness testing goes automatic
The new ZHV is the first British made fully automatic micro Vickers hardness testing machine.
The new ZHV is the first British made fully automatic micro Vickers hardness testing machine The new ZHV model is designed to perform tests using forces from 10g to 2kg
This article was originally published on Engineeringtalk on 22 Sep 2005 at 8.00am (UK)
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Indentec extends specification of Vickers testers
Indentec has extended the testing specification of its ZHV30 and ZHV1/2 Vickers hardness testers to include additional scales.
Hardness testing fixture holds the lot
No fewer than 19 different specimens can be supported for hardness testing by a single fixture developed by Indentec.
Hardness tester checks steel automatically
Indentec believes it is the first to engineer a digital Vickers hardness testing machine for fully robotic operation.
The unit features motorised turret and load change mechanisms and an electronically controlled test cycle as standard.
Equipped with a CCD video camera, the computer-aided system provides a wide range of testing functions, from semi automatic "point and click" measurement of indentation diagonals to a fully automatic mode which is independent of operator influence.
This ensures that reading differences due to variations between operators are removed.
Repeatability and reproducibility calculations suggest R and R values of less than 5% are achievable.
Supplied as standard with a manual x-y table and component vice, the unit is suitable for testing a variety of samples.
Specially designed fixtures are available for "awkward" test parts.
For companies interested in metallurgraphic analysis, a grain size software package is available which enables various methods for calculating the appropriate ASTM grain size number.
A range of PC controlled motorised x-y tables and an auto focusing facility enhance the performance of the standard unit to allow fully automatic testing, ideal for effective case depth determination and welded section evaluation.
The operator is able to program individual test patterns, specifying at each point the x and y locations as well as the upper and lower tolerances and test force.
Indentec says that the system will improve the speed and ease of hardness testing.
As well as eliminating variances in human interpretation of Vickers impressions, the new measuring technology will free the operator to carry out other duties while automatic testing is in progress.
Indentec is an independent UKAS accredited ISO17025 hardness calibration laboratory, and so the micro Vickers tester is dual calibrated to both ISO6507 and ASTM E92.
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