This paper presents the research results, showing how the surface roughness of black alder (Alnus glutinosa L.) and larch (Larix sibirica L.) wood is changing with increase of sanding time and abrasive grit size. The samples were sanded in the sanding stand using abrasive grit of three different sizes (P80, P120 and P180). The parameter of surface roughness of processed samples Rz was measured by contact profilometer in three sectors. The roughness in each sector was measured along and across the wood grain. Before statistical processing and modelling the received measurement results were processed using special digital filter. The results showed that the surface roughness is best explained and ranked by the sanding time, size of abrasive grit and wood grain direction.
Keywords: wood surface roughness, wood sanding, alder wood, larch wood
Authors
Kulikauskas D.
Department of Materials Engineering, Kaunas University of Technology, Kaunas
Keturakis G.
Department of Materials Engineering, Kaunas University of Technology, Kaunas
Baltrušaitis A.
Department of Materials Engineering, Kaunas University of Technology, Kaunas
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