scholarly journals Size effects in thin sheet metal forming

2015 ◽  
Vol 100 ◽  
pp. 012051
Author(s):  
T A Chang ◽  
A R Razali ◽  
N A I Zainudin ◽  
W L Yap
Keyword(s):  
Sheet Metal ◽  
Sheet Metal Forming ◽  
Size Effects ◽  
Metal Forming ◽  
Thin Sheet ◽  
Thin Sheet Metal

scholarly journals Simulation of ultra-thin sheet metal forming using phenomenological and crystal plasticity models

2016 ◽  
Vol 734 ◽  
pp. 032069 ◽  
Author(s):  
F Adzima ◽  
PY Manach ◽  
T Balan ◽  
L Tabourot ◽  
S Toutain ◽  
...  
Keyword(s):  
Sheet Metal ◽  
Crystal Plasticity ◽  
Sheet Metal Forming ◽  
Metal Forming ◽  
Thin Sheet ◽  
Thin Sheet Metal

APPLICATION OF FORMING LIMIT CRITERIA BASED ON PLASTIC INSTABILITY CONDITION TO METAL FORMING PROCESS

2008 ◽  
Vol 22 (31n32) ◽  
pp. 5680-5685
Author(s):  
SEONG-CHAN HEO ◽  
TAE-WAN KU ◽  
JEONG KIM ◽  
BEOM-SOO KANG ◽  
WOO-JIN SONG
Keyword(s):  
Sheet Metal ◽  
Sheet Metal Forming ◽  
Metal Forming ◽  
Thin Sheet ◽  
Plastic Instability ◽  
Theoretical Background ◽  
Forming Limit ◽  
Preliminary Evaluation ◽  
Forming Process ◽  
Element Analysis

Metal forming processes such as hydroforming and sheet metal forming using tubular material and thin sheet metal have been widely used in lots of industrial fields for manufacturing of various parts that could be equipped with mechanical products. However, it is not easy to design sequential processes properly because there are various design variables that affect formability of the parts. Therefore preliminary evaluation of formability for the given process should be carried out to minimize time consumption and development cost. With the advances in finite element analysis technique over the decades, the formability evaluation using numerical simulation has been conducted in view of strain distribution and final shape. In this paper, the application of forming limit criteria is carried out for the tube hydroforming and sheet metal forming processes using theoretical background based on plastic instability conditions. Consequently, it is confirmed that the local necking and diffuse necking criteria of sheet are suitable for formability evaluation of both hydroforming and sheet metal forming processes.

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