Mechanized ndt systems are used for solving testing tasks in variety of situations, in which usage of portable flaw detectors is either problematic or impossible, for example, complex testing of railcar wheelsets. Non-destructive testing systems are usually based around three automated ndt methods: ultrasonic, magnetic and eddy-current. Automatic ultrasonic testing is mainly used to solve tasks of large-scale inspection such as longitudinal pipes or railway axles. Conventional ultrasonic testing system developed by OKOndt GROUP™ is capable of not only testing, but also of collecting and providing information acquired during the on-site test, for post-processing. Magnetic methods are also applied in ndt systems produced by OKOndt GROUP™. These methods are either used alone or in combination with other non-destructive testing techniques, in order to acquire valid information about the condition of tested object. Non-destructive testing system based solely on magnetic ndt method provides users with highly accurate information about the test object surface condition. Eddy-current systems are used for testing parts with complicated shape, and critical structural elements, or as a supplementary tool for other methods. Eddy-current technique is common in avionics, as well as rail wheels and longitudinal tubes inspection. To obtain comprehensive and accurate information about test objects, the above methods can be combined in an integrated inspection system. Thus, ultrasonic systems paired with magnetic subsystems are widely used for testing rail wheels. Usage of different non-destructive methods in the same ndt system allows to avoid drawbacks and to further improve benefits of the combined techniques. Non-destructive testing machine manufactured by OKOndt GROUP™ is highly reliable and precise equipment, capable of conducting complex tests of multiple objects. Data acquired by ultrasonic, magnetic or eddy-current non-destructive testing system can also be used for post-processing, thus allowing the user to further increase the test accuracy. Bellow you can see some our examples of our non-destructive testing systems for different purposes.
Automated line for magnetic particle and ultrasonic testing of railway wheel rim, hub, disk and flange to be integrated into the wheel inspection station.
The line includes:
The line solves the following tasks:
SMARTSCAN Aircraft Wheel Inspection System is intended for testing of main and nose wheels of aircrafts of various world manufacturers such as Messier - Bugatti, Goodrich, Honeywell, Maggitt and others.
The System ensures the testing of the following wheel areas:
Parameters of the testing object
Outer diameters of the tested wheels:
Diameters of the centered holes of the tested wheels:
The System operation features
The System is controlled both from the operator's panel, and from the interface of the special-purpose software.
The main operating modes of the SMARTSCAN system are "Manual" and "Automatic".
In the "Manual" mode of operation, the System provides multiple movement of the eddy current probe (ECP) along the defect on the reference block allowing the operator to carry out rapid adjustment of the eddy current flaw detector.
Also, in the "Manual" operating mode, the operator is able to determine the coordinates for setting up the system for the wheel type to be tested:
In the «Automatic» mode of operation, the System ensures the scanning of the reference block in order to check the feasibility of ECP operation before starting the testing process, ensures an automatic scanning of the aircraft wheel surface, as well as conducts the scanning of the reference block to check the feasibility of ECP operation after the testing is finished.
The System is equipped with the remote "Pause" button, which allows the operator to stop testing, perform the confirmatory testing procedure, or sorting the area where the threshold was exceeded by the ECP signals.
The mechanism for capturing the wheel hub allows the aircraft wheels to be centered, at the testing positions, weighing up to 120 kg and perform their rotation with a speed of up to 150 rpm.
The System provides the testing of wheels both with down and up flange position allowing to test the wheel halves without the hub, in case of using the face-plate.
To prevent personnel injury, as well as the damage of the ECP, the System is equipped with hardware locks which, if the permissible force is exceeded, block the movement mechanism of the ECP.
SNK B-35 (L) is designed to automatically detect inadmissible internal and external defects of the roll body (breaking of the continuity of the metal such as: reed mark, flux inclusion, crack, fold, cleavage, etc.) with the issuance of protocols on the usability
UMPKOS-38 system is designed for magnetic particle inspection of railcar wheels axles during production and after repair.
The system is able to detect both longitudinal and transverse surface flaws (‘B’ sensitivity level as per GOST 21105) in accordance with EN 13261, GOST 31334, RD 32.144-2000, by wet fluorescent magnetic particle technique, using AC combined magnetizing (circular, polar). The system provides 100% inspection of the entire axle surface, except for ends.
This stationary-type system can be either integrated into the workshop process line or operated independently as a stand-alone MT station. Magnetic fluid is made of finely-cleaned degassed water, free from mechanical impurities and fat inclusions.
Test object specifications:
Axles with the below parameters are subject to testing by the system:
The use of automated wheelset inspection System allows increasing the testing productivity and reliability by several times due to simultaneous operation of multiple channels. Not only detected flaws but also all process data are fully recorded by the System during inspections. This helps to avoid NDT inspector’s mistake or negligence, and enables to make a detailed analysis of test results at any time.