Title: Applying the friction ring test on a micro and meso scale

Authors: Alexandre Milanez; Lírio Schaeffer; Alberto Moreira Guerreiro Brito

Addresses: Faculdade SATC, Rua Pascoal Meller, 73, Bairro Universitário, CP 362, 88805-380, Criciúma, Santa Catarina, Brazil. ' Laboratório de Transformação Mecânica da UFRGS, Av. Bento Gonçalves, 9500, Bairro Agronomia, CP 15.021, 91501-970, Porto Alegre, RS, Brazil. ' Laboratório de Transformação Mecânica da UFRGS, Av. Bento Gonçalves, 9500, Bairro Agronomia, CP 15.021, 91501-970, Porto Alegre, RS, Brazil

Abstract: This study analyses the friction between a micro/meso part and a tool using the friction ring test. Four different materials were analysed, SAE1020 steel, AISI304 stainless steel, AA6531 aluminium and C34000 brass. Compression tests were performed on the four materials to determine the material flow stress curves of two different test specimen sizes and look at the size effect on the compression test. Three different ring sizes in four different materials analysed were used for the friction ring tests, applying molybdenum bisulphide-based lubrication. Based on the results of the flow stress curves, the calibration curves were performed with the SIMUFATC software for each material and size of friction ring using the Amontons-Coulomb friction model. The results of the experiments indicate a reduction in friction as the part becomes smaller, and the factor material influences the reduction of friction between the part and the tool.

Keywords: friction ring test; micro parts; calibration curves; manufacturing systems; modelling; steel; stainless steel; aluminium; brass; compression tests; material flow; flow stress curves; molybdenum bisulphide; lubrication.

DOI: 10.1504/IJMMS.2012.048238

International Journal of Mechatronics and Manufacturing Systems, 2012 Vol.5 No.3/4, pp.322 - 337

Received: 28 Oct 2011
Accepted: 04 Jan 2012

Published online: 21 Aug 2014 *

Full-text access for editors Full-text access for subscribers Purchase this article Comment on this article