University of Oulu

Nissilä, Juhani (2015) Stress evaluation of a guillotine cutter with steels of varying yield strength and thickness using displacement and snap signals. In: Lahdelma, Sulo; Palokangas, Kari (eds.) Maintenance, condition monitoring and diagnostics, maintenance performance measurement and management : MCMD and MPMM 2015, 30th September - 1st October, 2015, Oulu, Finland, pp. 17-24.

Stress evaluation of a guillotine cutter with steels of varying yield strength and thickness using displacement and snap signals

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Author: Nissilä, Juhani1
Organizations: 1Control Engineering Research Group, Faculty of Technology P.O.Box 4300, FI-90014 University of Oulu, Finland
Format: article
Version: accepted version
Access: open
Online Access: PDF Full Text (PDF, 0.7 MB)
Persistent link: http://urn.fi/urn:nbn:fi-fe2018091835974
Language: English
Published: POHTO - The Institute for Management and Technological Training, 2015
Publish Date: 2018-09-18
Description:

Abstract

Ultra high-strength steels are becoming more common in the steel industry. The mechanical cutting of these steels with guillotine cutters is desirable when compared to plasma or laser cutters, but it is not clear how much more stress these ultra high-strength steels can cause to the guillotine cutter. The purpose of this paper is to analyse thousands of cutting events of steels of varying yield strength and thickness from a guillotine cutter and plot informative norms from these events. These norms are generalised lp norms of displacement and its fourth derivative, snap. According to the findings, at least for moderately thin (5–10mm) ultra highstrength steels (yield strengths 900–1100MPa) the stress on the cutter is not much higher than for softer conventional thin steels. Slower operating speed has also reduced stress levels considerably when cutting ultra high-strength steels with yield strengths up to 1330MPa. The acceleration measurements are from SSAB Europe Oy in Finland.

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ISBN Print: 978-951-98113-7-6
Pages: 17 - 24
Host publication: Maintenance, condition monitoring and diagnostics, maintenance performance measurement and management : MCMD and MPMM 2015, 30th September - 1st October, 2015, Oulu, Finland
Host publication editor: Lahdelma, Sulo
Palokangas, Kari
Conference: Maintenance, condition monitoring and diagnostics
Type of Publication: A4 Article in conference proceedings
Field of Science: 214 Mechanical engineering
216 Materials engineering
Subjects:
Copyright information: © 2015 POHTO - The Institute for Management and Technological Training. Published in this repository with the kind permission of the publisher.