Strain gage residual stress measurements
SINT Technology is a laboratory specialised in measuring residual stresses with strain gauge methods, and in particular:
- Hole drilling method
- Ring core method
- Other methods (sectioning, layer removal, Sachs method)
The automatic RESTAN-MTS3000 system, patented, produced and developed by SINT Technology is used for testing by the hole-drilling method.(See also the Products section and the site mts3000.com for details).
SINT Technology is a licensed laboratory to standard ISO/IEC 17025 for residual stress testing by the hole-drilling strain gauge method.
In addition, SINT Technology has developed the RESTAN-RINGCORE system for determining residual stresses by the ring core method, which allows residual stresses to be determined up to a depth of 5 mm and is particularly suited to many applications not requiring the surface measurement. The method is applied on forgings or castings of rotating machinery components (compressors, turbines etc).
The system is completely automatic: during the measurement process an electronic control unit and control software control progression and drilling with a crown milling cutter.
The system can be used for determining residual stresses by the ring core method in accordance with the KWU standard.
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