Monitoring of the Flange Draw-In During Deep Drawing Processes Using a Thin-Film Inductive Sensor

authored by
T. Fünfkirchler, M. Arndt, S. Hübner, F. Dencker, M. C. Wurz, B. A. Behrens
Abstract

The quality of deep-drawn parts is subject to uncontrollable fluctuations, triggered by material property variations and process deviations, which occur despite extensive quality controls along the entire process chain. Monitoring and controlling the draw-in of the sheet material—which is an indicator of a faultless deep drawing process—would allow for a significant increase in process robustness. However, this requires sensor systems suitable for the industrial environment, which so far do not exist. This paper presents a newly developed inductive sensor in thin-film technology for measuring the flange draw-in. The sensor was designed with the aid of finite-element-analysis and then manufactured using thin-film processes. After integration into a deep-drawing tool, the system was tested and validated. Afterwards, the detection of typical deep-drawing defects was investigated. It was demonstrated that the sensor system can reliably detect both cracks and wrinkles as well as the time at which they occur.

Organisation(s)
Institute of Metal Forming and Metal Forming Machines
Institute of Microtechnology
Type
Contribution to book/anthology
Pages
111-121
No. of pages
11
Publication date
02.02.2023
Publication status
Published
Peer reviewed
Yes
ASJC Scopus subject areas
Industrial and Manufacturing Engineering, Economics, Econometrics and Finance (miscellaneous), Safety, Risk, Reliability and Quality
Electronic version(s)
https://doi.org/10.1007/978-3-031-18318-8_12 (Access: Closed)
 

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