The SINT MTS3000 system is ideal for residual-stress measurement applications

The SINT MTS3000 residual stress analyzer system, or RESTAN, available from Durham Instruments

SINT Technology is the manufacturer to trust for top solutions for measuring residual stresses in industrial hole-drilling applications. One of this company’s most innovative devices, available in Canada from Durham Instruments, is the MTS3000 residual stress analyzer, or RESTAN. This instrument operates as part of a complete system for residual-stress measurement.

Because residual tensile stress can reduce the fatigue life of mechanical components by causing cracks, this SINT residual stress analyzer is a must for hole-drilling operations.

High accuracy and repeatability

The MTS3000 system consists of several components: an optical alignment system, which aligns the drilling axis to the rosette centre; a high-speed air turbine drilling system, which makes the hole physically; an electronic control unit, which controls the alignment-drilling system and measurements via analog amplifiers; hole-drilling operation and control software for enabling and disabling automatic drilling; and software for processing acquired information.

The alignment-drilling unit physically drills the hole and lines up the cutter with the centre of the strain gauge rosette with a cross reticule in the eyepiece. After testing, the system is used to measure the hole diameter, with micrometer adjustments making movement on the horizontal plane. Users can easily position the system in any operating condition with the help of the magnetic feet and overhung design. Two kinds of vertical movement are possible – either using an adjustment knob to advance the drilling head manually, or using a stepping motor for automatic control of fine positioning.

Advantages and features of the RESTAN residual stress analyzer system include:

• High measuring accuracy;
• High repeatability, due to fully automatic drilling and acquisition;
• High-speed drilling of up to 400,000 revolutions per minute;
• Automatic stepping motor control of drilling depth;
• Automatic zero-depth detection;
• Measurement of residual-stress variation with the testing depth;
• Choice of calculation methods for stress profile and residual stress; and
• Compliance with strict ASTM standards.

Durham Instruments recommends the MTS3000 system for use in many industries, including general manufacturing, aerospace, education, the medical field, the military, power generation, alternative energy, transportation, and research and development.

To learn more, contact Durham Instruments.

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