OCTOBER 19-20, 2012 - YMCA University of Science & Technology

Proceedings of the National Conference on
Trends and Advances in Mechanical Engineering,
YMCA University of Science & Technology, Faridabad, Haryana, Oct 19-20, 2012
Klaus M. Wurster etc describes a procedure for automated optimization of blank holder force distribution for a
deep-drawing process with segment-elastic blank holder. Thereby, it was possible to identify optimized blank
holder force distribution in space and time without manual investigation of optimization results during finite
element analysis prior to manufacturing of deepdrawing die. These could be traced back to Yoshida [14], Wang
X. and Cao J. [15], Zhang LC, Yu TX, Wang R.[16], and Fatnassi A, Tomita Y, Shindo [17]. Colgan,
M., Monaghan, J [18] – worked on the initial stages of a combined experimental and finite element analysis
(FEA) of a deep drawing process. The objective of theses work was to determine the most important factors
influencing a drawing process, utilizing the help of a design of experiments and statistical analysis. M. Firat[19]
worked on the finite element simulations of a sheet metal forming process. His method helped in designing the
forming interface for a stamping part by shifting the costly press shop try-outs to the computer aided design
environment. The finite element models used in the sheet metal formability and stamping feasibility assessment
studies are commonly based on the ideally rigid die-face design. The results have indicated the relative merits of
the die-face distortions on the formability and springback deformations.M. Abbasi, M. Ketabchi, at al [20]
worked tailor welded blanks (TWBs) that are steel sheets of different characteristics welded into a single flat
blank prior to pressing in order to achieve the optimal material arrangement and weight reduction for cars, and to
increase process efficiency and machine flexibility. The results also showed that wrinkle waves just formed in
thin segment of TWB, and wrinkling initiated by development of three wrinkle waves. Agrawal, A., Reddy, N.
V., etc study the determination of optimum process parameters for wrinkle free products in deep drawing process
[21].
3. Methodology
In figure 9 flow diagram is given that shows the steps involved in the present work. 3D data of component is
transferred to FASTFORM for developing the blank. Different conditions on 3D deep drawn component for
analysis with FASTFORM were applied.
Figure 7 Top view of the silencer protector
Figure 8 Section view of Silencer Protector
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