Factors Causing Undesirable Deformations during the Bending of Extruded Sections

Autor:	Noah Utsumi, Shuji Sakaki
Rok vydání:	2006
Předmět:	Materials science Mechanical Engineering Bending Condensed Matter Physics Flattening Cross section (physics) Mechanics of Materials Distortion Pure bending Bending moment General Materials Science Deformation (engineering) Composite material Neutral axis
Zdroj:	MATERIALS TRANSACTIONS. 47:1354-1359
ISSN:	1347-5320 1345-9678
DOI:	10.2320/matertrans.47.1354
Popis:	The authors have investigated the factors causing undesirable deformations of extruded sections subjected to a quasi-uniform bending moment. These deformations include flattening distortion, wrinkling and folding. In this report, the basic mechanism of the flattening distortion of the cross section is explained and effective methods for controlling the undesirable deformation are proposed. The flattening distortion appears as a primary deformation at the beginning of the bending operation and corresponds to the shape of the cross section and the degree of bending. It is clarified that the thickness of the wall, the shape of the cross section and the position of the neutral axis influence the configuration of the flattening distortion. As an example, the bend degree of the wrinkling limit is approximately fourfold when the thickness of the workpiece is doubled.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::80086fd34138f39498895604b49ab89d https://doi.org/10.2320/matertrans.47.1354 Zobrazit plný text záznamu