Počet záznamov: 1
Determination of vibration during longitudinal milling of wood-based materials
SYS 0109946 LBL 00000naa^^22^^^^^^^^450 005 20210428161341.8 017 70
$a 10.17423/afx.2021.63.1.08 $2 DOI 100 $a 20210428a m y0sloy0103 ba 101 0-
$a eng 102 $a SK 200 1-
$a Determination of vibration during longitudinal milling of wood-based materials $f Georgi Kovatchev, Valentin Atanasov 215 $c Obr., tab. 320 $a Lit. 330 $a The study of vibrations during the operation of the cutting mechanism in a woodworking shaper is presented in the paper. Wood-based details used in the furniture manufacturing like plywood and medium-density fibreboard (MDF) were milled. The experiments were performed using the universal milling machine with lower spindle position FD-3 located in a laboratory at the Department of Woodworking Machines, University of Forestry – Sofia.Vibration velocity was measured using a specialized device model Bruel & Kjaer Vibrotest 60 at 6000 min-1 rotation frequency. The exact vibration state measurements were made in two mutually perpendicular directions (Ax and Ay). On the basis of the experiment, regression equations were developed. Determination of the influence of feed speed U (from 2m·min-1 to 10m·min-1 ) and milling area А (from 48 mm2 to 144 mm2 ) at the vibration velocity V mm·s-1 (r·m·s) was performed by conducting planned two-factor regression analysis. The vibration velocity values at the point Ax were from 1.85 mm·s-1 to 2.76 mm·s-1 , and at the point Ay were from 1.75 mm·s-1 to 2.97 mm·s-1 . The measured roughness Rz of the test specimens was from 20 μm to 157 μm. The investigation results can be used as a base for making some recommendations concerning an increase in reliability of the wood shapers as well as the accuracy and quality of their production. 463 -1
$1 001 sldk_un_cat*0109573 $1 011 $a 1336-3824 $1 200 1 $a Acta Facultatis Xylologiae Zvolen $e vedecký časopis Drevárskej fakulty $v Vol. 63, no. 1 (2021), s. 85-92 $1 210 $a Zvolen $c Technická univerzita vo Zvolene $d 2021 610 1-
$9 sldk_un_auth*h010962 $a MDF dosky $X medium density fiberboard 610 1-
$9 sldk_un_auth*h017066 $a preglejované materiály $X plywood materials 610 1-
$9 sldk_un_auth*h008221 $a frézovacie zariadenia $X milling equipment 610 1-
$9 sldk_un_auth*h034159 $a rezné mechanizmy $X cutting mechanisms 610 1-
$9 sldk_un_auth*h007753 $a vibrácie $X vibrations 675 $a 630*862 $v 1. stred. $z slo 675 $a 630*832.2 $v 1. stred. $z slo 675 $a 630*823.1 $v 1. stred. $z slo 675 $a 630*822 $v 1. stred. $z slo 675 $a 534 $v 1. stred. $z slo 700 -1
$3 sldk_un_auth*0051984 $a Kovatchev $b Georgi $4 070 701 -1
$3 sldk_un_auth*0051983 $a Atanasov $b Valentin $4 070 801 -0
$a SK $b ZV001 $c 20210428 $g AACR2 856 4-
$u https://df.tuzvo.sk/sites/default/files/08-01-21.pdf
Počet záznamov: 1