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Featured researches published by G Pinkowski.


Wood Material Science and Engineering | 2014

Effect of thermomechanical densification on surface roughness of wood veneers

Pavlo Bekhta; S Proszyk; Tomasz Krystofiak; Miroslava Mamonova; G Pinkowski; Barbara Lis

Abstract The effect of short-term thermomechanical densification of veneer on the surface roughness and surface anatomical changes in four wood species – alder (Alnus glutinosa Gaertn.), beech (Fagus sylvatica L.), birch (Betula verrucosa Ehrh.), and pine (Pinus sylvestris L.) – was studied. Veneer sheets were densified at a temperature of 100, 150, or 200°C and at a pressure of 4, 8, or 12 MPa for 4 minutes. Seven roughness parameters such as Ra, Rz, Rq, Rp, Rv, Rsk, and Rku were determined. Profile surface was recorded using a modified Carl Zeiss ME-10 profile gauging profilometer. Surface anatomical changes of veneer were examined using scanning electron microscopy. The results showed that densification temperature and pressure affect surface roughness of veneer. The surface became smoother, and roughness values decreased significantly (except for Rku which increased slightly) with increasing temperature and pressure of densification. The effect of temperature on surface roughness changes is more pronounced compared with that of densification pressure. The lowest values of surface roughness were recorded for pine veneer samples followed by alder, birch, and beech samples. These results can be used to provide initial data for adhesive application processes in woodworking industry.


Annals of Warsaw University of Life Sciences - SGGW. Forestry and Wood Technology | 2010

Quality of profile milling on a cnc woodworking machine.

G Pinkowski; W Szymanski


Annals of Warsaw University of Life Sciences - SGGW. Forestry and Wood Technology | 2009

Impact of the wear of the cutting edge on selected parameters of the surface geometric structure after wood milling

G Pinkowski; W Szymanski; Adam Gilewicz; Andrzej Krauss


Annals of Warsaw University of Life Sciences - SGGW. Forestry and Wood Technology | 2010

Impact of the cutting edge condition on the results of oak wood milling.

G Pinkowski; W Szymanski; Andrzej Krauss


Annals of Warsaw University of Life Sciences - SGGW. Forestry and Wood Technology | 2009

Durability of blades covered by multilayer anti-wear coatings during wood milling.

W Szymanski; Adam Gilewicz; G Pinkowski; Piotr Beer


Annals of Warsaw University of Life Sciences - SGGW. Forestry and Wood Technology | 2012

The effect of feed speed on effectiveness of chip evacuation in drilling of wood materials

W Szymanski; G Pinkowski


Bioresources | 2018

Effect of Sharpness Angle and Feeding Speed on the Surface Roughness during Milling of Various Wood Species

G Pinkowski; W Szymanski; Andrzej Krauss; Stanisław Stefanowski


Drvna Industrija | 2016

Snaga rezanja pri glodanju toplinski modificiranog drva

Andrzej Krauss; Magdalena Piernik; G Pinkowski


Bioresources | 2016

The Effect of Spiral Grain on Energy Requirement of Plane Milling of Scots Pine (Pinus sylvestris L.) Wood

G Pinkowski; Andrzej Krauss; Maciej Sydor


Bioresources | 2016

Effect of Thermal Treatment on the Surface Roughness of Scots Pine (Pinus sylvestris L.) Wood after Plane Milling

G Pinkowski; Andrzej Krauss; Magdalena Piernik; W Szymanski

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W Szymanski

University of Life Sciences in Poznań

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Andrzej Krauss

University of Life Sciences in Poznań

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Adam Gilewicz

Koszalin University of Technology

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Bogdan Warcholiński

Koszalin University of Technology

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B. Warcholinski

Koszalin University of Technology

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