Studying Formability Limits By Combining Conventional and Incremental Sheet Forming Process
| Autor: | Daniel Fritzen, Fábio André Lora, Ricardo J. Alves de Sousa, Lirio Schaffer |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
0209 industrial biotechnology
Work (thermodynamics) Materials science Strain paths 02 engineering and technology Numerical simulation Industrial and Manufacturing Engineering 020901 industrial engineering & automation 0203 mechanical engineering TJ1-1570 Formability Hybrid forming process Mechanical engineering and machinery TC1501-1800 Pyramid (geometry) Incremental process Computer simulation business.industry Mechanical Engineering Process (computing) Structural engineering Incremental sheet forming Ocean engineering 020303 mechanical engineering & transports business |
| Zdroj: | Chinese Journal of Mechanical Engineering, Vol 34, Iss 1, Pp 1-12 (2021) |
| ISSN: | 2192-8258 1000-9345 |
| Popis: | In this work it is assessed the potential of combining conventional and incremental sheet forming processes in a same sheet of metal. This so-called hybrid forming approach is performed through the manufacture of a pre-forming by conventional forming, followed by incremental sheet forming. The main objective is analyzing strain evolution. The pre-forming induced in the conventional forming stage will determine the strain paths, directly influencing the strains produced by the incremental process. To conduct the study, in the conventional processes, strains were imposed in three different ways with distinct true strains. At the incremental stage, the pyramid strategy was adopted with different wall slopes. From the experiments, the true strains and the final geometries were analyzed. Numerical simulation was also employed for the sake of comparison and correlation with the measured data. It could be observed that single-stretch pre-strain was directly proportional to the maximum incremental strains achieved, whereas samples subjected to biaxial pre-strain influenced the formability according to the degree of pre-strain applied. Pre-strain driven by the prior deep-drawing operation did not result, in this particular geometry, in increased formability. |
| Databáze: | OpenAIRE |
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