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Content available remote The effect of the type of stylus on the results of surface roughness of pine wood (Pinus sylvestris L.) after milling
Pinkowski G., Horak I., Szymański W., Stefanowski S., Krauss A.
Annals of Warsaw University of Life Sciences - SGGW. Forestry and Wood Technology
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2018
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No. 104
36--42
EN
The article presents results of the surface roughness of pine wood and it shows a problem of comparison of results obtained using profilometers with different measuring gauges. Moreover, the effect of feeding speed and rotational speed of a spindle on the surface quality was investigated. Large dispersion of the results was observed, depending on applied measuring gauge. The differences between the results were variable and depended on technological parameters of milling process. During increasing the rotational speed (cutting speed), difference between the results for each gauge also increased. Moreover it was stated that rotational speed of the spindle, and feeding speed have a considerable effect on the surface roughness of pine wood. Multiple regression equations were designated for both measuring gauges and both analyzed roughness parameters.
2
Content available remote The effect of the type of stylus on the results of surface roughness of pine wood (Pinus sylvestris L.) after milling
Pinkowski G., Horak I., Szymański W., Stefanowski S., Krauss A.
Annals of Warsaw University of Life Sciences - SGGW. Forestry and Wood Technology
|
2018
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No. 103
185--191
EN
The article presents results of the surface roughness of pine wood and it shows a problem of comparison of results obtained using profilometers with different measuring gauges. Moreover, the effect of feeding speed and rotational speed of a spindle on the surface quality was investigated. Large dispersion of the results was observed, depending on applied measuring gauge. The differences between the results were variable and depended on technological parameters of milling process. During increasing the rotational speed (cutting speed), difference between the results for each gauge also increased. Moreover it was stated that rotational speed of the spindle, and feeding speed have a considerable effect on the surface roughness of pine wood. Multiple regression equations were designated for both measuring gauges and both analyzed roughness parameters.
PL
Artykuł prezentuje wyniki badań chropowatości powierzchni drewna sosny i sygnalizuje problem porównywalności wyników uzyskanych na profilografometrach z różnymi końcówkami pomiarowymi. Ponadto badano wpływ prędkości posuwu i prędkości obrotowej wrzeciona na stan obrobionej powierzchni po obróbce na frezarce dolnowrzecionowej. Zaobserwowano duże zróżnicowanie otrzymanych wyników, w zależności od zastosowanej końcówki pomiarowej. Różnice między wynikami były zmienne, w zależności od rodzaju końcówki i wyznaczonego parametru chropowatości. Wraz ze wzrostem prędkości skrawania wzrastała różnica w otrzymanych wynikach chropowatości, pomiędzy zastosowanymi końcówkami pomiarowymi. Ponadto stwierdzono istotny wpływ prędkości posuwu i prędkości obrotowej wrzeciona na chropowatość powierzchni drewna sosny oraz wyznaczono równania regresji wielorakiej dla obu końcówek pomiarowych i analizowanych parametrów chropowatości.
3
Content available remote The effect of the feed speed and rotation speed of plane milling on the surface roughness of beech wood
Pinkowski G., Szymański W., Krauss A., Stefanowski S.
Annals of Warsaw University of Life Sciences - SGGW. Forestry and Wood Technology
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2018
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No. 103
5--12
EN
The paper presents studies on the effect of feed speed and spindle rotation speed on the milled surface of beech wood worked on a milling machine. In this study eight feed speed variants and five spindle rotation speed variants were tested. The analyses focused on roughness characteristics of milled surface and detailed visual (organoleptic) analyses were conducted. A statistically significant effect of feed speed and spindle rotation speed was observed. Advantageous ranges of beech wood cutting parameters were determined for practical application in milling operations.
4
Content available remote Analysis of the surface roughness of native wood species depending on angular parameters of the cutting tool during milling in different conditions
Stefanowski S., Pinkowski G., Szymański W., Krauss A.
Annals of Warsaw University of Life Sciences - SGGW. Forestry and Wood Technology
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2018
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No. 103
13--17
EN
The presented study concerned the effect of technological parameters such as feeding speed and sharpness angle on the surface roughness of three native wood species: beech, pine and black locust. The sharpness angle was investigated in range of 40-55° during milling with various values of feeding speeds. Milling process was carried out with the use of bottom spindle milling machine and roughness measurements were completed using stylus profilometer. In order to analyze the results simple linear regression analysis was done. It has been stated that in milling process linear upward trend of the surface roughness occurs with an increase in the feeding speed. However, the characteristic of this feature depends on the sharpness angle and wood species. In case of the sharpness angle, the best results were obtained for an angle in range of 40-45°. Designated linear regression lines were characterized by high coefficient of determination.
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