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Milled die steel surface roughness correlation with steel sheet friction

Johan Berglund (Institutionen för material- och tillverkningsteknik, Tillverkningsteknik) ; C A Brown ; Bengt-Göran Rosén (Institutionen för material- och tillverkningsteknik, Tillverkningsteknik) ; N Bay
CIRP Annals - Manufacturing Technology. 60th General Assembly of CIRP. Pisa, ITALY. AUG 22-28, 2010 (0007-8506). Vol. 59 (2010), 1, p. 577-580.
[Konferensbidrag, refereegranskat]

This work investigates correlations between the surface topography of milled steel dies and friction with steel sheet. Several die surfaces were prepared by milling. Friction was measured in bending under tension testing. Linear regression coefficients (R^2) between the friction and texture characterization parameters were tested. None of the height, spacing, material volume, void or segmentation parameters showed good correlations. Developed area, rms surface gradient, relative area and complexity showed strong correlations (R^2 > 0.7). For area-scale fractal complexity the correlation increases markedly at scales below 200 μm^2, with a maximum R^2 of 0.9 at 50 μm^2.

Nyckelord: Surface topography; Friction; Metal forming

Denna post skapades 2010-11-01. Senast ändrad 2013-10-25.
CPL Pubid: 128407


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Institutioner (Chalmers)

Institutionen för material- och tillverkningsteknik, Tillverkningsteknik (2005-2017)



Chalmers infrastruktur

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