Formability of Automotive H240LA Steel Sheets in Stretch-Bending Processes

被引：6

作者：

Martinez-Palmeth, L. H. ^{[1
]}

Martinez-Donaire, A. J. ^{[1
]}

Centeno, G. ^{[1
]}

Garcia-Lomas, F. J. ^{[1
]}

Vallellano, C. ^{[1
]}

机构：

[1] Univ Seville, Dept Mech & Mat Engn, Escuela Tecn Super Ingn, Seville 41092, Spain

来源：

MANUFACTURING ENGINEERING SOCIETY INTERNATIONAL CONFERENCE, (MESIC 2013) | 2013年 / 63卷

关键词：

Sheet metal forming; H240LA; Stretch-Bending; Necking; Ductile Fracture; NECKING; LIMITS;

D O I：

10.1016/j.proeng.2013.08.205

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This paper discusses the influence of punch radius on the formability of 1.2 mm thick H240LA steel sheets. A series of Nakazima tests with hemispherical punch and stretch-bending tests with cylindrical punches of variable diameter were performed in order to assess the influence of the strain gradient on sheet failure. Necking limit strains were obtained by using a recently reported time-dependent methodology that can be used not only in conventional Marciniak and Nakazima tests, but also in the presence of a severe strain gradient across the sheet thickness. Based on the results, formability in H240LA steel sheets increases with decreasing t0/R ratio. Fracture limit strains in both test series were evaluated by using an optical strain measurement system and measuring specimen thickness after fracture. (C) 2013 The Authors. Published by Elsevier Ltd.

引用

页码：669 / 677

页数：9

共 50 条

[21] Numerical Analysis of the Stress/Strain Evolution in Incremental Sheet Forming and Stretch-bending Processes
Centeno, G.
Vallellano, C.
Vazquez, J.
Doblas, F. J.
Martinez-Donaire, A. J.
Garcia-Lomas, F. J.
ADVANCES IN NON CONVENTIONAL MATERIALS PROCESSING TECHNOLOGIES, 2012, 713 : 103 - 108
[22] Determination of uniaxial large-strain workhardening of high-strength steel sheets from in-plane stretch-bending testing
Capilla, Gustavo
Hamasaki, Hiroshi
Yoshida, Fusahito
JOURNAL OF MATERIALS PROCESSING TECHNOLOGY, 2017, 243 : 152 - 169
[23] Analysis of the High Formability of Automotive Steel Sheets by the Surface Texturing Effect
Yoon, Seung Chae
Lyo, In Woong
Cho, Min Haeng
KOREAN JOURNAL OF METALS AND MATERIALS, 2012, 50 (01): : 8 - 12
[24] Draw-Bending Formability of Steel Sheets in Hot Stamping Process
Kusumi, Kazuhisa
Nomura, Naruhiko
Yamamoto, Shuji
Suehiro, Masayoshi
HOT SHEET METAL FORMING OF HIGH-PERFORMANCE STEEL CHS2 (3RD INTERNATIONAL CONFERENCE PROCEEDINGS), 2011, (03): : 107 - 113
[25] FEM simulation on bending formability of resin composite lightweight steel sheets
Kang, Yonglin
Wang, Bo
Li, Guancheng
Beijing Keji Daxue Xuebao/Journal of University of Science and Technology Beijing, 2000, 22 (05): : 451 - 455
[26] Characterization of tensile properties of tailor welded IF steel sheets and their formability in stretch forming
Panda, Sushanta Kumar
Kumar, D. Ravi
Kumar, Harish
Nath, A. K.
JOURNAL OF MATERIALS PROCESSING TECHNOLOGY, 2007, 183 (2-3) : 321 - 332
[27] STRETCH-BENDING STRAIGHTENING AND ITS INFLUENCE ON THE PROPERTIES OF COLD-ROLLED SPECIALTY STEEL STRIP
KNAPP, S
FUNKE, P
KIRCHHOFF, KH
WUPPERMANN, CD
STAHL UND EISEN, 1994, 114 (09): : 91 - &
[28] Analytical Approach to Failure Determination of Advanced High-Strength Steel in Stretch-Bending Mode
Lee, Jae-wook
Barlat, Frederic
STEEL RESEARCH INTERNATIONAL, 2021, 92 (01)
[29] Tribology Test Methods and Simulations of the Effect of Friction on the Formability of Automotive Steel Sheets
Jadhav, S.
Schoiswoh, M.
Buchmayr, B.
METALLURGIA ITALIANA, 2018, (09): : 56 - 63
[30] Investigation of high-strength steel component subjected to stretch-bending: effect of forming history
Fyllingen, Orjan
Langseth, Magnus
Hopperstad, Odd Sture
MATERIAL FORMING ESAFORM 2014, 2014, 611-612 : 1702 - 1709

← 1 2 3 4 5 →