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StressX

Robotic Residual Stress X-Ray Diffractometer

Non-destructive analysis on any dimensions samples * EN UNI 15305 and ASTM 915 compliant * X Ray Diffractometer mounted on 6-axis robot

Category:

X-Ray Diffraction

Application:

Material Science Metals

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Made in Italy

Quality control in metal

analysis using OES/RDE

Material properties control

using XRD/TXRF

World Wide

Distribution

Complete Description

StressX is a X-Ray Diffractometer dedicated to the Residual Stress Analysis, providing a non-destructuve test of the samples. The head of the diffratometer is mounted on an anthropomorphic 6 axis robot that allows to analyze samples of any dimensions and shapes.

StressX could be mounted either in a closed cabin, suitable for laboratory analysis or on a four wheel trolley for on site analysis.
Residual Stress could be induced by machining, grinding, rolling, deep drawing, welding, thermal hardening and shot peening; its quantification allows to prevent fatigue damage and to control material’s durability and safety.

StressX provides a flexible solution to residual stress determination on samples of any dimensions by the original synergy between compact X ray diffractometer and 6-axis robot.

6-axis robots are available with positioning accuracy and repeatability as low as 20 μm and positioning range as high as 895 mm radius from robot center.

Measuring target is defined by a combination of a Video camera for X-Y pointing and a laser for Z positioning.

Laser accuracy can be less than 10 μm and measuring range can be as high as 300 mm from the goniometer center.

Thanks to the 6 degree of freedom the measuring positions and angular ranges are only limited by robot size.

Product Applications

Some specific applications of the Stress-X are listed below:

Detection of Residual Stress on sprocket wheels
Detection of Residual Stress on car motor parts (cam axles, connecting rods, engine shafts, equalisers, …)
Detection of Residual Stress induced by deep drawing (household appliances, structural parts, …)
Detection of existing Operational Stress on gas conducts
Detection of Operational Stress on large tensioned structures
Measurement of efficiency of Shot-Peening and rolling of components subjected to Stress
Definition of the quantity of Retained Austenite on bearings and parts of diesel motor injectors
Detection of Residual Stress in castings (cast iron parts of tool machines and aluminium components)
Detection of Stress induced by welding (laser and electron)
Search for a correlation between residual stress and stress resistance of aluminium alloy car rims
Optimisation of working parameters for swarf removal to improve the stress resistance of mechanical components
Detection of Residual Stress on helicoidal and leaf springs
Search for critical zones after applying work loads (arms and aeronautics)

Technical Data

X Ray Generator	Maximum Output Power: 300 W Max Output Voltage: 30 kV Max Output Current: 10 mA Ultra-compact design, universal input and power factor corrected Stability < 25 ppm/hr after 2 hours warm up.
X-Ray Tube	High brilliance Metal/Ceramic X-ray tube Cr anode provided as standard Cu, Co, Fe, V, Ti and Mn available as options
Robot	6-axis anthropomorphic robot Accuracy and a repeatability in positioning better than 10 microns
Robotic Goniometer	Programmable max. -45° / + 45° Psi scan with oscillation from 1° to 10° Selectable radius: 120, 140, 160 mm 2Theta range: from 125° to 164°
Detector	Fast Detector (DECTRIS Mythen Multi Strip Detector)
Optics	Standard monocapillary diameter collimators: 0.5, 1 and 2 mm. Other diameters available 120 microns focus polycapillary collimator
Laser	Laser accuracy: better than 2 microns with a measuring range of 150 +/- 40 mm Alignment procedure distance: 70 mm (X-ray collimator/sample)
Cooling	Self-contained re-circulating water-cooling with heat exchanger No external water supply needed
Dimensions	Trolley: 1.150 x 1.530 x 1.800 mm 250 kg Cabin: 1.200 x 1.200 x 2.000 mm 350 kg

Software Informations

GNR proprietary software X-Sense® for StressX supports several tasks of analysis, from Data Acquisition, having the full control of all the process and hardware settings (generator and tube, detector, measurements set up) to Data Analysis, calculating the residual stress or retained austenite values.

An extremely easy to use software for Uni-axial, Bi-axial and Tri-axial residual stress analysis has been developed in compliance with ASTM E915 practice and UNI EN 15305.