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Residual stresses - Hocus-Pocus or real value?

 

Our free webinar on the topic of residual stresses 

Thursday,  January 14,  2027
3.00 pm - 3.30 pm (CET)

Residual stresses are an often underestimated property of your components that determines their service life. For example, the presence of a specific residual stress state can significantly increase the allowable number of load cycles for components subjected to alternating loads or shift the allowable load amplitude to much wider ranges. On the other hand, unfavorable residual stress states can cause a component to fail after an unexpectedly short period of service. Therefore, it is always worthwhile to address the topic of residual stresses.

In this webinar, Dr.-Ing. Oliver Maiß answers the following questions, among others:

  • What exactly are residual stresses?

  • How do residual stresses affect component strength?

  • How can I introduce residual stresses safely and efficiently?

 

JPG_Portrait_Oliver Maiß_2023-02-13

Your webinar speaker

Dr.-Ing. Oliver Maiß
Head of Research and Development/Marketing

Oliver Maiß has been part of ECOROLL since 2018 and brings together many years of experience in design, research and development, and now also marketing. Before joining ECOROLL, he earned his Ph.D. in solid-state rolling at Leibniz University Hannover between 2012 and 2017.

As a result, he understands both the technical intricacies and the requirements of users and decision-makers. This holistic perspective shapes the content of our webinars and seminars. 

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Surface Engineering through mechanical processing

The properties of a surface can be specifically and reliably imparted using mechanical surface treatment processes. This allows the desired functions of the components to be achieved cost-effetively and reproducibly.

The best-know mechanical surface treatment processes:

Shot blasting

Kugelstrahlen-1
In shot blasting, spherical abrasive particles are blasted onto the surface in a targeted manner. The impacts cause deformation of the surface and harden it.

Roller burnishing

Glattwalzen
The surface is continuously plastically deformed by pressing in and rolling a ball or roller. This creates a particularly smooth surface without removing any material.

Deep rolling

Festwalzen
As with roller burnishing, the surface is treated with a roller or ball. However, the process is carried out with the aim of introducing compressive stresses and work hardening and increasing strength.

Diamond smoothing

Diamantglätten

Mechanical pressing of a diamond hemisphere into the surface. The pressing causes the diamond to rub against the surface, thereby smoothing it.

Machine hammer peening

Haemmern
Impulse-like stressing of the surface by a hammer head to significantly strengthen the surface. The impulse generated by the hammering results in a significantly greater penetration depth into the surface.

Skiving/roller burnishing

Schaelen
Fast and efficient internal machining of cylinder tubes through a combination of boring, internal round peeling, and roller burnishing.
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