The trend toward miniaturization of metallic microparts results in the need of high-precision production methods. Major challenges are, for example, downsizing of tools and adequate positioning accuracy within blanking. Starting from a novel approach for tool miniaturization and its realization, the aim of this study is showing the assessment of tool sensitivity against process errors. Etched silicon punches were used for blanking copper foils, where outbreaks occurred at the cutting edge. Hence, tool stresses during blanking were analyzed by finite element (FE) method in dependency of defined positioning and process errors and evaluated concerning tool stresses and sheared edge quality.
Influence of Process Errors on the Tool Load in Microblanking of Thin Metal Foils With Silicon Punches
Contributed by the Manufacturing Engineering Division of ASME for publication in the JOURNAL OF MICRO- AND NANO-MANUFACTURING. Manuscript received August 11, 2014; final manuscript received January 20, 2015; published online February 20, 2015. Assoc. Editor: Gracious Ngaile.
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Hildering, S., Engel, U., and Merklein, M. (June 1, 2015). "Influence of Process Errors on the Tool Load in Microblanking of Thin Metal Foils With Silicon Punches." ASME. J. Micro Nano-Manuf. June 2015; 3(2): 021001. https://doi.org/10.1115/1.4029629
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