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Metals 2019, 9(2), 162; https://doi.org/10.3390/met9020162

Modelling and Microstructural Aspects of Ultra-Thin Sheet Metal Bundle Cutting

1
Institute of Theoretical and Applied Mechanics, Silesian University of Technology, 44-100 Gliwice, Poland
2
Institute of Engineering Materials and Biomaterials, Silesian University of Technology, 44-100 Gliwice, Poland
*
Author to whom correspondence should be addressed.
Received: 31 December 2018 / Revised: 23 January 2019 / Accepted: 29 January 2019 / Published: 1 February 2019
(This article belongs to the Special Issue High-Strength Low-Alloy Steels)
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Abstract

The results of numerical simulations of the cutting process obtained by means of the finite element method were studied in this work. The physical model of a bundle consisting of ultra-thin metal sheets was elaborated and then submitted to numerical calculations using the computer system LS-DYNA. Experimental investigations rely on observation of metallographic specimens of the surfaces being cut under a scanning electron microscope. The experimental data showing the microstructure of an ultra-thin metal bundle were the basis for the verification of the numerical results. It was found that the fracture area consists of two distinct zones. Morphological features of the brittle and ductile zones were identified. There are distinct differences between the front and back sides of the knife. The experimental investigations are in good agreement with the simulation results. View Full-Text
Keywords: steel sheet; cutting; finite element method; scanning electron microscope; plastic zone; brittle area; fracture steel sheet; cutting; finite element method; scanning electron microscope; plastic zone; brittle area; fracture
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Kaczmarczyk, J.; Kozłowska, A.; Grajcar, A.; Sławski, S. Modelling and Microstructural Aspects of Ultra-Thin Sheet Metal Bundle Cutting. Metals 2019, 9, 162.

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