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Evaluation of a robot assisted polishing equipment
Halmstad University, School of Business and Engineering (SET), Mechanical Engineering and Industrial Design (MTEK), Functional Surfaces.ORCID iD: 0000-0002-9084-819X
Halmstad University, School of Business and Engineering (SET), Mechanical Engineering and Industrial Design (MTEK), Functional Surfaces.ORCID iD: 0000-0001-8058-1252
2008 (English)In: Proceedings (CD) of the 2nd Swedish Production Symposium; Stockholm, Sweden, 2008, 6- p.Conference paper, (Refereed)
Abstract [en]

This study is based on several tests of a robot assisted polishing equipment, the Strecon RAP-200, which was recently developed by Strecon A/S in purpose to polish punches and dies for metal forming. The main part of the study was a 4-factor 2-level design of experiment, where the influence of pressure, pulse, repetitions and linear speed on the final surfaces were studied with help of both a mechanical stylus and an interferometer.

The number of repetitions seemed to be the main factor affecting the final surface quality, but also the rotation speed seemed to affect the surface roughness. Further evaluations will be performed in the forthcoming three years.

Place, publisher, year, edition, pages
2008. 6- p.
Keyword [en]
robot assisted polishing, tool steel, surface characterization
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:hh:diva-6152OAI: oai:DiVA.org:hh-6152DiVA: diva2:357510
Conference
The 2nd Swedish Production Symposium, 18-20 November, Stockholm, Sweden, 2008
Available from: 2010-10-19 Created: 2010-10-18 Last updated: 2014-03-05Bibliographically approved
In thesis
1. Polishability of tool steels: Characterisation of high gloss polished tool steels
Open this publication in new window or tab >>Polishability of tool steels: Characterisation of high gloss polished tool steels
2009 (English)Licentiate thesis, comprehensive summary (Other academic)
Abstract [en]

The manufacturing of plastic components, like a majority of other mass produced discrete parts, require well designed dies and moulds. Complex geometries and increasing demands on final surface appearance, which is strongly connected to the quality impression, are pushing for high demands on mould-makers and polishers as well as steel producers. Moulds for production of shiny plastic components require tool steels with low defect levels to achieve highly gloss and very smooth mould surfaces (roughness levels in the nm-range).

It is the ability to achieve those mirror-like surfaces, the polishability of tool steels, that is the central part in this study. To increase the understanding of how material properties and different surface preparation techniques impact the polishability, a selection of high gloss polished tool steel qualities were characterised using non-contact 3D-surface texture analysis.

A first step towards a grading system of the polishablility was made based on a classification of surface defects detected on included steel samples. 3D surface parameters based on interferometer measurements seemed to be useful for a characterisation, even though further studies (involving different filters and segmentation methods) are needed to find less and more precise parameter values to grade tool steel qualities.

Future work will include analysis of surface measurements of test moulds and plastic parts, as well as studies of how quantitative parameters can be linked to qualitative estimations in order to better understand how surface features on the mould are transferred into the surface of plastic components.

Place, publisher, year, edition, pages
Göteborg: Chalmers University of Technology, 2009. 50 p.
Series
[Technical report] / Department of Materials and Manufacturing Technology, Chalmers University of Technology, ISSN 1652-8891 ; 45
Keyword
tool steels, surface characterisation, polishability, 3D parameters, high gloss polishing
National Category
Manufacturing, Surface and Joining Technology
Identifiers
urn:nbn:se:hh:diva-6179 (URN)
Presentation
2009-03-04, Seminar room Delta-Gamma, Hörsalsvägen 7, Chalmers University of Technology, Gothenburg, 13:15 (English)
Opponent
Available from: 2010-11-09 Created: 2010-10-20 Last updated: 2013-11-19Bibliographically approved

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Rebeggiani, SabinaRosén, Bengt-Göran
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