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| Title: | Finite element modeling of sheet metal forming process |
| Authors: | I., Abu-Shah
A., Abdul-Latif
N., Kamsah
Z., Ahmad
M. N., Tamin |
| E-mail: | taminmn@fkm.utm.my |
| Keywords: | Axisymmetric model
Finite element method
Sheet metal drawing
Stress triaxiality
Tool force-displacement curve |
| Issue Date: | 27-Feb-2012 |
| Publisher: | Universiti Malaysia Perlis (UniMAP) |
| Department: | Pusat Pengajian Kejuruteraan Mekatronik |
| Series/Report no.: | Proceedings of the International Conference on Applications and Design in Mechanical Engineering 2012 (ICADME 2012) |
| Abstract: | This work examines the mechanics of sheet metal
forming process consisting of drawing a 0.7 mm-thick 0.045C
steel blanks into cup-shape parts. Drawing process parameters
consist of die clearance setting of 0.6 mm and blank holder
clamping force of 70 kN. The drawing stroke is incrementally
increased at 5 mm/min until fracture of the drawn cup is
detected. The force and stroke at fracture is measured at 36.3 kN
and 9.0 mm, respectively. Finite element (FE) simulation of the
drawing process is performed using an axisymmetric model. The
steel blank is treated as a non-linear hardening material while the
tool, blank holder and die are assumed to behave as rigid bodies.
Coulomb friction coefficient value, μ = 0.24 provides excellent
approximation of the measured tool force-displacement curve.
The tool force-displacement curve can be distinguished into three
stages based on deformation mechanics of the steel blank. The
calculated residual stress and plastic strain is 152 MPa and 31.9
%, respectively following constrained springback of the drawn
part. Fracture initiated at the location with the greatest gradient
of plastic strain across the part thickness and dictated by local
stress triaxiality. |
| Description: | International Conference on Applications and Design in Mechanical Engineering 2012 (ICADME 2012) organized by School of Mechatronic Engineering, Universiti Malaysia Perlis (UniMAP), 27th - 28th Februari 2012 at Bayview Beach Resort, Penang, Malaysia. |
| URI: | http://hdl.handle.net/123456789/19701 |
| Appears in Collections: | Conference Papers
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Files in This Item:
| File |
Description |
Size | Format |
|---|
| AM28.pdf | Access is limited to UniMAP community | 323.78 kB | Adobe PDF | View/Open |
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