Targeted improvement of surface and subsurface characteristics to increase the service life of highly stressed components - Inspiring exchange on the use of mechanical surface treatment

More than 20 participants met on 27.04.22 at Leibniz-IWT in Bremen to discuss current issues and findings in the field of modifying the surface integrity. The work of the Expert Committee on Mechanical Surface Treatments had been successfully continued in digital formats in the last two years, the experts from industrial practice and research institutes were now able to meet again in person.

A well-balanced program of presentations was fed by contributions from the universities, research institutes and companies represented. The effects of deep rolling on the surface/subsurface characteristics and service life of welded offshore components, parabolic springs in the automotive industry or additively manufactured medical components were discussed as lively as the effects of peening processes on the peening material and the peened workpieces. Novel tool concepts were presented in talks on the machining of connecting rod eyes as well as grinding with a dominant mechanical effect using tools with elastically bonded spherical grains. During the breaks, the technical exchange could be continued in the laboratories of the Leibniz-IWT, where the opportunity was also taken to get to know directly the research topics currently being worked on at various experimental stands.

The participants explicitly welcomed meeting again in person, which additionally contributed to the open and constructive discussion atmosphere that is usual for the group. A face-to-face event at one of the participating companies is therefore already planned for the meeting to be held in fall. Exciting topics will also be on the agenda for the next meeting, so that participants can already look forward to new food for thought and fresh insights.

The DGM would like to thank Dr. Daniel Meyer from the Leibniz Institute for Materials Engineering IWT for organizing the meeting of the Expert Committee Mechanical Surface Treatments, which was chaired by Dr. Stefan Dietrich from the Karlsruhe Institute of Technology.

Information on all expert committees can be found on the DGM homepage at

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