DSpace university logo mark
Advanced Search
Japanese | English 

NAOSITE : Nagasaki University's Academic Output SITE > Faculty of Education > Bulletin > Science bulletin of the Faculty of Education, Nagasaki University > No. 48 >

有節木材からの単板切削を想定しての被削材繊維走向およびナイフ引き切り速度の影響-4 : ナイフすくい面の摩擦係数の変化について(ホワイトセラヤ被削材およびスギ被削材の場合)


File Description SizeFormat
kyoikuS48_065.pdf3.66 MBAdobe PDFView/Open

Title: 有節木材からの単板切削を想定しての被削材繊維走向およびナイフ引き切り速度の影響-4 : ナイフすくい面の摩擦係数の変化について(ホワイトセラヤ被削材およびスギ被削材の場合)
Other Titles: Effects of Sliding Velocity of the Knife and Grain Angle of the Workpiece upon the Frictional Coefficient on the Knife Rake- Face in Veneer Cutting by Feeding the Knife to the Workpiece during the Sliding of the Knife in the Direction Parallel to the Cutting Edge
Authors: 杉山, 滋
Authors (alternative): Sugiyama, Shigeru
Issue Date: 28-Feb-1993
Publisher: 長崎大学教育学部
Citation: 長崎大学教育学部自然科学研究報告. vol.48, p.65-82; 1993
Abstract: Orthogonal cutting tests of veneer, by feeding a knife to the workpiece during the sliding of the knife in the direction parallel to the cutting edge, were made (Figs. 2~4). Air-dried specimens of white seraya (Parashorea malaanonan Merr.) and sugi (Cryptomeria japopica D, Don), which were fixed to the experimental apparatus equipped with a three-dimensional elastic-ring dynamometer, were cut during the feeding of the knife (Figs. 5 and 6). The components of the cutting force were measured, and the effects of the ratio (f) of the sliding velocity (Vk) to the feeding velocity (Vw) and the grain angle (φ) of the workpiece, upon the cutting force were clarified. Using these comonents, the frictional coefficient (μ) on the rake face of the knife was calculated from Eqs. (1) ~ (6), and te effects off and φupon μ were clarified. Using these results, charactedristics of the veneer cutting method used in this study are discussed, coomparing it with the conventional orthogona1 cutting of veneer. The main tendencies of the variations of μ were: (1) The value of μ increases with increases in f (Figs. 7, 8, 11and12) and (2) although μhas a constant value or varies with increase in the degree of φ, their increasing tendencies depend not only on the sliding direction of the knife but also on the degree of φ(Figs. 9, 10, 13 and 14).
URI: http://hdl.handle.net/10069/32253
ISSN: 0386443X
Type: Departmental Bulletin Paper
Text Version: publisher
Appears in Collections:No. 48

Citable URI : http://hdl.handle.net/10069/32253

All items in NAOSITE are protected by copyright, with all rights reserved.

 

Valid XHTML 1.0! Copyright © 2006-2015 Nagasaki University Library - Feedback Powerd by DSpace