English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

The presented results are based on an experimental feasibility study which was carried out for the application of micro-hydroforming in the manufacture of micro-sized products made from the material PtIr10. Within the scope of this product development, the prediction of feasible and failure-free expansions was one major aspect. This paper deals with the analysis of the failure cases which limited the expansions due to necking. The experimental investigations have shown a scattering of the forming results which was due to so-called size-effects resulting from the material grain structure. Simulations with the finite element method were used to determine the development of stresses and strains within the hydroformed tube. It was demonstrated that a superimposition of axial compressive stresses reduces the influence of size-effects and increases the feasible expansion diameter. Using these simulations, the applicability of an existing failure criterion to estimate a mean forming-limit was verified

Evaluation of experimental and numerical investigations into micro-hydroforming of platinum tubes for an industrial application