Enhanced application of virtual manufacturing: Influences of material parameters on numerical Simulation of forming process

• Main Authors: Adenan, M.S (Author), Awiszus, B. (Author), Bauer, A. (Author), Graf, M. (Author), Ismail M.H (Author), Kuntjoro, W. (Author), Manurung, Y.H.P (Author), Omar, A.R (Author), Sulaiman, M.S (Author)
• Format: Article
• Language: English
• Published: Institute of Physics Publishing, 2020
• Online Access: View Fulltext in Publisher; View in Scopus

 This paper describes the sensitive influence of material parameters on the final numerical simulation result of forming process as one of virtual manufacturing applications. Although existing commercial software system provide predefined material properties, these can nevertheless differ with the actual material which might result in inaccuracies. Hence, material data needs to be enhanced to gain better simulation results. This investigation begins with development of flow curve of steel DC04 (1.0338) based on compressive test with various effective plastic strains under consideration of rolling direction. Further, Forming Limit Diagram (FLD) is to be defined by using Nakajima test to determine the strains up to the fracture for deep drawing process. In this research, the enhanced application on sheet forming process is modelled and simulated as well as verified under laboratory condition using an oil-hydraulic press. It can be demonstrated that the numerical simulation results are very sensitive due to the essential differences in material properties. However, this procedure will lead to time and cost intensive measurements of the material behaviour, which is mandatory for an accurate forecast of real forming process. © 2020 IOP Publishing Ltd. All rights reserved.