Quantitative and qualitative analysis of strain near the cutting edge during high-speed machining of hardwood

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F22%3APU149072" target="_blank" >RIV/00216305:26210/22:PU149072 - isvavai.cz</a>

Alternative codes found

RIV/62156489:43410/22:43922577

Result on the web

—

DOI - Digital Object Identifier

—

Result language

angličtina

Original language name

Quantitative and qualitative analysis of strain near the cutting edge during high-speed machining of hardwood

Original language description

A predicted increase of hardwoods in the Central Europe forests predetermines the transformation of industrial processes from softwood to hardwood cutting technologies. This study is part of the work systematically characterizing the high-speed linear and rotational cutting of hardwood by using of in-house device and conventional CNC machine. Based on the unique experimental data from Split-Hopkinson pressure and tensile bar the numerical models of hardwood linear and rotational cutting are built. In this study, the strain field near the cutting edge is analysed by digital image correlation. The images are acquired by high-speed cameras during the linear and rotational cutting of European beech (Fagus sylvatica L.) at various moisture content (MC) levels and knife sharpness condition (Fig. 1). The analysis pointed out the differences compared to softwoods and specifics of hardwood cutting. The development of strain field during the chip formation is related to reaction forces pattern. The presented strain analysis may contribute to optimizing of high-speed cutting of hardwoods. The affected area near the cutting edge during the linear cutting of hardwood is larger compared to softwood; meanwhile, from the qualitative point of view the strain field was similar. There were recognized tension and compression normal strains. The findings about cutting conditions effects can be generalized for both hardwood and softwood similarly. The rotary cutting is specific compared to linear one from the quantitative point of view by an increasing magnitude of strains and increasing size of affected area during the chip formation, and from the qualitative point of view by almost no tension strain.

Czech name

—

Czech description

—

Type

D - Article in proceedings

CEP classification

—

OECD FORD branch

20502 - Paper and wood

Project

—

Continuities

O - Projekt operacniho programu

Publication year

2022

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection

10th Hardwood Conference

ISBN

978-963-334-446-0

ISSN

—

e-ISSN

—

Number of pages

6

Pages from-to

251-256

Publisher name

Neuveden

Place of publication

neuveden

Event location

Sopron

Event date

Oct 12, 2022

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

000945965000050