Mechanics of self-rotating double-disc grinding process

Dražumerič, Radovan (author), Badger, Jeffrey A. (author), Gustavsson, Tomas (author), Krajnik, Peter (author)

Unlike most double-disc grinding processes, which use forced workpiece rotation, some double-disc processes rely on workpiece self-rotation driven by non-uniform shear forces resulting from partial wheel-workpiece coverage. This self-rotation is poorly understood, with workpiece angular frequency remaining unknown despite its importance. This paper investigates the kinematics of self-rotation via analytical modelling of the moment-equilibrium conditions, derived from experimentally determined specific-energy values. The model showed that workpiece coverage ratio is the dominant factor governing workpiece angular frequency, allowing for the choice of optimal workpiece coverage ratios that avoid workpiece-stoppage and excessive frictional heat generation. The predicted velocity was validated with acoustic-emission measurements.

• Language: English
• Keywords: grinding, bearing, double disc
• Work type: Article
• Typology: 1.01 - Original Scientific Article
• Organization: FS - Faculty of Mechanical Engineering
• Publication status: Published
• Publication version: Version of Record
• Publication date: 20.04.2022
• Year: 2022
• Number of pages: Str. 309-312
• Numbering: Vol. 71, iss. 1
• PID: 20.500.12556/RUL-138675
• UDC: 621.7
• ISSN on article: 0007-8506
• DOI: 10.1016/j.cirp.2022.03.033
• COBISS.SI-ID: 117677059
• Publication date in RUL: 09.08.2022

Record is a part of a journal

• Title: CIRP annals
• Shortened title: CIRP ann.
• Publisher: Technische Rundschau, Hallwag Verlag, Colibri, Elsevier
• ISSN: 0007-8506
• COBISS.SI-ID: 170267

Licences

• License: CC BY 4.0, Creative Commons Attribution 4.0 International
• Link: http://creativecommons.org/licenses/by/4.0/
• Description: This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.
• Licensing start date: 20.04.2022

Secondary language

• Language: Slovenian
• Keywords: brušenje, ležaji, dvojni disk

Projects

• Funder: Other - Other funder or multiple funders
• Funding programme: International Grinding Insti- tute (IGI)

• Funder: Other - Other funder or multiple funders
• Funding programme: AB SKF