Numerical Simulation and Optimisation of Sheet Metal Forming for Auto-Body Panel Using AutoForm Software

2007 ◽  
Vol 561-565 ◽  
pp. 1911-1914 ◽  
Author(s):  
Xuan Zhi Wang ◽  
Syed H. Masood ◽  
M. Dingle

This paper focuses on a rapid simulation methodology for sheet metal forming, using AutoForm™ software, for an auto-body panel. An engine hood is selected as a sample part. Simulation of the whole process cycle, including drawing, cutting and flanging is presented generally. According to the required outer surface forming quality, the dominant parameter is determined firstly from various parameters using AutoForm™ sigma module. The optimisation of the dominant parameters is then performed to obtain the best result. This methodology can decrease the optimisation time and predict the most crucial parameter in the forming process for design engineers, which can dramatically reduce the lead time of automobile industries.

Procedia CIRP ◽  
2014 ◽  
Vol 18 ◽  
pp. 203-208 ◽  
Author(s):  
J. Enz ◽  
S. Riekehr ◽  
V. Ventzke ◽  
N. Sotirov ◽  
N. Kashaev

2018 ◽  
Vol 19 (6) ◽  
pp. 756-760
Author(s):  
Tomasz Trzepieciński ◽  
Irena Nowotyńska

The friction phenomenon existed in almost all plastic working processes, in particular sheet metal forming, is a complex function of the material's properties, parameters of the forming process, surface topography of the sheet and tools, and lubrication conditions. During the stamping of the drawpieces there are zones differentiated in terms of stress and strain state, displacement speed and friction conditions. This article describes the methods for determining the value of the coefficient of friction in selected areas of sheet metal and presents the drawbacks and limitations of these methods.


Author(s):  
Jasri Mohamad

To improve sheet metal forming process simulation using finite element method, there is a need to incorporate an appropriate constitutive equation capable of describing the Bauschinger effect and the so-called cyclic transient, derived from a near to actual sheet metal forming process testing tool. A cyclic loading tool has been developed to test and record the characteristics of sheet metal deformation by investigating the Bauschinger effect factors (BEF) and cyclic hardening behaviour. Experimental investigation conducted on low carbon steel and stainless steel demonstrates that the tool is able to record sheet metal behaviour under cyclic loading. The results are analysed for signs of the Bauschinger effect and cyclic hardening effect. It was found that the Bauschinger effect does occur during bending and unbending loadings in sheet metal forming process.


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