Latest news and updates at sentenso

Automation of residual stress analyses

With StressEasy in version 1.3.0, sentenso has now presented a powerful software tool after a one-year test phase with selected customers, which allows the automation of a variety of measurement tasks for residual stress analysis with the fast X-ray stressanalyser µ-X360s and a six-axis robot.

Supported measurement procedures include out-of-plane stress state analysis, complete stress tensor determination, residual stress mapping and stack measurements in laboratory and production environments.

Residual stress analysis with the cos-alpha method

In the next-to-last online meeting of the ASM International Technical Committee on Residual Stress on 27 August 2021, the cos-alpha method for simple residual stress analysis was discussed for the first time. Advantages and limitations compared to the classical sin²-psi method were discussed.

The topic is becoming increasingly relevant as faster evaluation methods are needed for residual stress determination, e.g. in production environments. The inclusion of cos-alpha in the new ASM Handbook is being prepared.

Shot peening experts from the aviation industry exchange ideas

After a one-year break due to the pandemic, the shot peening forum with experts from German engine manufacturers and MRO companies is back at the starting line.

The 15 to 20 dedicated shot peening experts and process managers from a total of ten manufacturing and maintenance companies for jet engines and components in Germany have been meeting annually since 2017 to discuss general issues related to shot peening of engine components across companies. The confidentiality of company-specific information is of course maintained.

This year, sentenso is hosting the fourth edition online. The planned topics can be found in the corresponding Quick Info.

Organisation of the first operator meeting µ-X360 - cos-alpha as online conference

The operator meeting µ-X360 - cos-alpha for residual stress analysis took place on 15.04.2021 with 24 participants in the digital meeting room of sentenso GmbH. The newly created format, moderated by sentenso application expert Jörg Behler, is intended to ensure an intensive exchange of experiences among German users of the cos-alpha method with the X-ray diffractometer µ-X360 from Pulstec in Japan.

In addition to a very lively exchange of experience on measurement practice, the naming of the variables of the method for publications and the evaluation of the standard deviation and the confidence interval were discussed, among other topics.

Furthermore, Jörg Behler presented possibilities for data backup of the software used and showed a live online demonstration of StressEasy, the software extension developed by sentenso for the automation of measurement tasks in the determination of residual stress states.

For the managing director Volker Schneidau and the sentenso development team, another goal is in the foreground besides the transfer of knowledge: The reception of positive and negative criticism as well as ideas for the further development of the measurement technology, the software functions as well as the automation technology.

As with the previous expert meeting, sentenso provides all participants with the collected information in a structured and compact form. The operator meeting was very well received by the participants and is to be held annually in future in addition to the already established expert meeting. While the expert meeting on the cos-alpha method will focus on scientific applications, the operator meeting will mainly focus on laboratory and industrial measurement practice.