Authors: Maaß, Fabian
Huhn, Marlon
Tekkaya, A. Erman
Title: Adjusting residual stresses by flexible stress superposition in incremental sheet metal forming
Language (ISO): en
Abstract: Process-induced residual stresses significantly influence the mechanical properties of a formed component. A polymer pad is used as a flexible die in two-point incremental forming to induce compressive residual stresses in the component during the forming process. Experimental and numerical results illustrate the influence of compressive stress superposition on the component properties. It is shown that the active support, using a geometry-independent polyurethane die, causes beneficial compressive residual stresses on the tool side compared to the tensile residual stresses induced by the single-point incremental forming process without such a supporting die.
Subject Headings: Two-point incremental forming
Flexible die
Residual stress
X-ray diffraction
Subject Headings (RSWK): Blechumformen
Inkrementelles Umformen
Matrize <Umformen>
Issue Date: 2021-03-22
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