Influence of toolpath strategies on the final accuracy and thickness distributions in multi-stage incremental forming

Influence of toolpath strategies on the final accuracy and thickness distributions in multi-stage incremental forming


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Abstract. This study focuses on finding a toolpath strategy for accurately forming geometric details on a preshaped sheet metal part by incremental forming in multiple steps. The final thickness distributions and geometrical accuracy are analyzed for spiraling and dedicated feature toolpath strategies. The results are compared to forming the full part (base shape with details) in a conventional single stage manner. Forming the part in multiple steps did improve the accuracy of the part, by decreasing the underforming of the base shape compared to single stage forming. The observed overforming was highly influenced by the location of the detail. In terms of thickness distributions, the toolpath strategy highly influenced the location of the minimal thickness inside each detail. Here, the dedicated feature toolpath proved to be effective for achieving a more uniform thickness distribution.

Single Point Incremental Forming, Multi-Stage Forming, Process Control

Published online 4/24/2024, 9 pages
Copyright © 2024 by the author(s)
Published under license by Materials Research Forum LLC., Millersville PA, USA

Citation: VANHULST Marthe, VANHOVE Hans, DUFLOU Joost R., Influence of toolpath strategies on the final accuracy and thickness distributions in multi-stage incremental forming, Materials Research Proceedings, Vol. 41, pp 1498-1506, 2024


The article was published as article 166 of the book Material Forming

Content from this work may be used under the terms of the Creative Commons Attribution 3.0 license. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.

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