Open access
Date
2023Type
- Conference Paper
ETH Bibliography
yes
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Abstract
Setting EDM technology parameters is a time consuming and expensive process. The development of a process model facilitates the understanding of the input parameters on the process results, which can speed up the selection of the optimal technology for a cut. This work aims to model the wire-EDM machining process with a three-dimensional geometrical voxel model through the sequential placement of single craters. To model workpiece sizes closer to reality, 2.25 109 voxel elements are used to construct the virtual workpiece. The simulation showed that under the same pulse energy conditions, main cut simulations have a smaller average roughness compared to trim cuts, a claim that is supported by experiments presented in this work. This disparity is related to the direction of the craters imposed by the geometrical conditions, i.e. the position of the wire relative to the workpiece. Furthermore, the simulation showed proportional roughness values compared to the experimental ones, though always underestimating the roughness value. This difference emerges because the model, as it does not incorporate the build up around the craters that might appear on the surface. Show more
Permanent link
https://doi.org/10.3929/ethz-b-000642003Publication status
publishedExternal links
Book title
19th CIRP Conference on Modeling of Machining OperationsJournal / series
Procedia CIRPVolume
Pages / Article No.
Publisher
ElsevierEvent
Subject
Electrical discharge machining (EDM); Geometrical simulation; Voxel simulationOrganisational unit
03641 - Wegener, Konrad (emeritus) / Wegener, Konrad (emeritus)
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ETH Bibliography
yes
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