Numerical simulation and experimental investigation of incremental sheet forming with an elastic support

2014 ◽  
Vol 74 (9-12) ◽  
pp. 1649-1654 ◽  
Author(s):  
Junchao Li ◽  
Tingting Bai ◽  
Zhiqiang Zhou
Keyword(s):  
Numerical Simulation ◽  
Experimental Investigation ◽  
Sheet Forming ◽  
Incremental Sheet Forming ◽  
Elastic Support

Experimental Investigation on Warm Incremental Sheet Forming Assisted with Oil Bath Heating

2021 ◽  
pp. 23-31
Author(s):  
San Zhang ◽  
Hongbo Kang ◽  
Xiangkui Jiang ◽  
G. H. Tang ◽  
Junsuo Qu
Keyword(s):  
Experimental Investigation ◽  
Sheet Forming ◽  
Incremental Sheet Forming

Numerical Prediction of Joule Heating Effect in Electric Hot Incremental Sheet Forming

2021 ◽  
Author(s):  
Zhengfang Li ◽  
Songlin He ◽  
Yuhang Zhang ◽  
Zhiguo An ◽  
Zhengyuan Gao ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Joule Heating ◽  
Thermal Conductance ◽  
Element Model ◽  
Sheet Forming ◽  
Incremental Sheet Forming ◽  
Heating Effect ◽  
Forming Process ◽  
Joule Heating Effect ◽  
Force Coupling

Abstract Since the deformation region involves the interaction of electric-thermal-force coupling in electric hot incremental sheet forming, the numerical simulation of the forming process is unusually difficult. Currently, the thermal-force coupling method is adopted to simulate approximately the whole forming process, and the Joule heating effect is often ignored. Therefore, the numerical simulation of Joule heating effect is especially significant for the prediction accuracy of forming process. In this paper, a novel numerical simulation method, considering electric-thermal-force parameters, was proposed to instantly update the thermal-force condition of forming region. Meanwhile, the model of contact thermal conductance was established combining geometrical and electric-thermal parameters, and then a high-precision finite element model was obtained to predict the Joule heating effect of forming region. In addition to this, the effect of thermal superposition on forming temperature was further analyzed and a modified model of contact thermal conductance was established in electric hot incremental sheet forming.

Study on Formability of TRIP Steel in Incremental Sheet Forming

2013 ◽  
Vol 634-638 ◽  
pp. 2881-2884 ◽  
Author(s):  
Jin Wang ◽  
Li Hua Li ◽  
Bao Ping Wang ◽  
Hu Sen Jiang
Keyword(s):  
Numerical Simulation ◽  
Production Process ◽  
Wall Thickness ◽  
Trip Steel ◽  
Forming Limit Diagram ◽  
Intersection Point ◽  
Sheet Forming ◽  
Incremental Sheet Forming ◽  
Forming Limit ◽  
Initial Angle

The formability of a TRIP590 steel with 0.67mm thick in incremental sheet forming (ISF) was investigated. A variable angle cone, which opening diameter and generatrix radius are 100mm, and initial angle is 35 °, was formed until the specimen cracked. The depth at the intersection point of the actual wall thickness and theoretical wall thickness of the cone was measured, and the forming limit angle of the TRIP590 steel was got and about 66.5 °. Additionally, an arc groove and a cross arc groove were formed. Through measuring changes of the grids printed on the surface of the tested sheet, the forming limit diagram of the TRIP590 steel in ISF was obtained. The forming limit angle and diagram obtained can be used in designing the production process and numerical simulation of forming the TRIP steel.

Sign in / Sign up

Export Citation Format

Share Document