Modeling elastic behavior of forming machine components to reduce tool manufacturing time

Tehel, Robert; Päßler, T.; Mihm, M.

doi:10.1016/j.promfg.2018.12.062

Cited by 8 publications

(6 citation statements)

References 1 publication

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“…Thus, in addition to the strongly reduced number of elements, the convergence of the optimization is highly improved, which together results in reduced computation time. The accuracy of the model in reproducing the measured deflections for the measured load cases is still high, as shown for an exemplary hydraulic press in [13].…”

Section: Modeling Approach Based On Topological Optimizationmentioning

confidence: 82%

“…It is gathered by determining the global coordinates of a number of target points at the press both for the unloaded and the loaded state of the machine and by determining their difference. The resulting differences are total deformations corresponding to a specific load distribution measured with load cells (usually four) and a summed total press force [13]. Other options for measuring elastic deformations include optical camera devices [10], tactile sensors on a measurement framework [14], or dial gauges.…”

Section: Methods For Data Acquisitionmentioning

confidence: 99%

“…This more promising approach of generating FE models for reproducing the elastic deflection of the machine due to external loading out of measured data from the individual machine in its actual state is the target of this paper. The main options for such an approach are the parametrization of analytical models as mentioned by Penter [9] and the fitting of phenomenological models [10,13].…”

Section: Elasto-mechanical Characteristics Of Forming Machinesmentioning

confidence: 99%

“…Another option is to leave out the nonlinear parts and to consider them separately in the simulation workflow. This leads to a reduced model always resulting in a deformation that is too small compared with the measured total displacements [13].…”

Section: Linearization and Integration Of Non-linearities In The Modelmentioning

confidence: 99%

See 3 more Smart Citations

Effective FE models for simulating the elasto-mechanical characteristics of forming machines

Tehel

Päßler

Bergmann

2020

Int J Adv Manuf Technol

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The elasto-mechanical characteristic of forming machines is crucial for a variety of forming processes. Numerical simulations are to be performed to understand the complex interaction between process, forming tool, and machine. The machine's elastic fingerprint depends on its design, accuracy of the components, and mounting conditions. Models only based on data of the machine design are limited. Therefore, effective FE models are to be developed to transfer the physical structure into a digital representation. The paper presents different methods of creating effective models for the characteristics of forming machines determined by measurements. Examples and potential of using these models are presented.

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Section: Modeling Approach Based On Topological Optimizationmentioning

confidence: 82%

Section: Methods For Data Acquisitionmentioning

confidence: 99%

Section: Elasto-mechanical Characteristics Of Forming Machinesmentioning

confidence: 99%

Section: Linearization and Integration Of Non-linearities In The Modelmentioning

confidence: 99%

See 2 more Smart Citations

Effective FE models for simulating the elasto-mechanical characteristics of forming machines

Tehel

Päßler

Bergmann

2020

Int J Adv Manuf Technol

View full text Add to dashboard Cite

show abstract

“…Additionally, to the technological challenges, there are challenges on the machine side regarding concept development and monitoring due to the very high demands on dimensional and shape accuracy of the manufactured BP-HP. Especially, publications like the work of Tehel et al [12] shows the great influence of the elastic machine behaviour and properties on the success of a resistant forming process and on the necessary technology parameters.…”

Section: Process Sequence and Forcesmentioning

confidence: 99%

Characterization of the Machine Behavior During Hollow Embossing Rolling of Metallic Bipolar Half Plates

Wagner¹,

Alaluss²,

Kurth³

et al. 2023

Journal of Machine Engineering

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The hollow embossing rolling of thin-walled high precision components like metallic bipolar half plates is characterized by narrow process windows. Here, the knowledge of interaction between forming machine, roll and process is crucial for the process stability and quality of formed bipolar half plates. In this paper, the elastic machine and forming roll behaviour as a major influence parameter is described and analysed on qualitative level and verified by simulation. This investigation involves a review regarding the process sequence, forces for the hollow embossing rolling of metallic bipolar half plates. By varying the load distributions, the elastic deformations of the forming machine and their forming roll are investigated and analysed regarding process influence and potential for process monitoring.

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Cognitive clamping geometries for monitoring elastic deformation in forming machines and processes

et al. 2021

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Modeling elastic behavior of forming machine components to reduce tool manufacturing time

Cited by 8 publications

References 1 publication

Effective FE models for simulating the elasto-mechanical characteristics of forming machines

Effective FE models for simulating the elasto-mechanical characteristics of forming machines

Characterization of the Machine Behavior During Hollow Embossing Rolling of Metallic Bipolar Half Plates

Cognitive clamping geometries for monitoring elastic deformation in forming machines and processes

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