Original scientific paper

https://doi.org/10.17559/TV-20150729135016

Influence of milling process on machined surface of porous polyurethane (PU) foam

Rok Hafner ; Faculty for Mechanical Engineering, Aškerčeva 6, 1000 Ljubljana, Slovenia
Franci Pušavec ; Faculty for Mechanical Engineering, Aškerčeva 6, 1000 Ljubljana, Slovenia
Luka Čerče ; Faculty for Mechanical Engineering, Aškerčeva 6, 1000 Ljubljana, Slovenia
Janez Kopač ; Faculty for Mechanical Engineering, Aškerčeva 6, 1000 Ljubljana, Slovenia

Abstract

Nowadays polyurethane modelling foams are successfully replacing original materials in many applications due to certain comparative advantages also in copying artefacts. Milling is a fundamental machining operation frequently used in transforming products of PU foam. This experimental study focuses on surface roughness of milled PU foam. The influences of machining parameters on surface roughness in PU foam milling were assessed. Linear and area surface roughness evaluations after CNC milling are compared and estimated for the use in future research. Additionally the surface roughness values increase with a feed rate per tooth and decrease with an increase of spindle speed. The milling tests showed significant influence of modelling board density on the final surface roughness. Additional area surface roughness values have been evaluated.

Keywords

milling; polyurethane modelling foam; surface roughness

Hrčak ID:

163755

URI

https://hrcak.srce.hr/163755

Publication date:

16.8.2016.

Article data in other languages: croatian

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