Metal Flow of a Tailored Blank in Square Cup Deep Drawing 980447
The application of tailored blanks to autobody parts has progressed because of its numerous advantages. The forming of tailored blanks has, however, a lot of technical problems. Among the problems, weld-line movement and formability deterioration are the most significant ones in case of deep drawing. The weld-line movement and formability change were examined experimentally as a function of weld-line location in square cup deep drawing. The weld-line movement of tailored blank consists of two sources. One is the geometrical reason, and the other is due to the hardening of weld bead. The formability of tailored blank is inferior to that of an original blank by the existence of hardened weld region. The mode of fracture changes from wall breakage to a fracture adjacent to punch radius when the weld-line was close to the punch corner.
Citation: Hayashi, H., Pak, S., and Usuda, M., "Metal Flow of a Tailored Blank in Square Cup Deep Drawing," SAE Technical Paper 980447, 1998, https://doi.org/10.4271/980447. Download Citation
Author(s):
Hisashi Hayashi, Suk-Wan Pak, Matsuo Usuda
Affiliated:
The Institute of Physical and Chemical Research (RIKEN), Kia Motor Corp., Nippon Steel Corp.
Pages: 9
Event:
International Congress & Exposition
ISSN:
0148-7191
e-ISSN:
2688-3627
Also in:
Developments in Sheet Metal Stamping-SP-1322, SAE 1998 Transactions - Journal of Materials & Manufacturing-V107-5
Related Topics:
Forming
Hardening
Welding
Wear
Metals
Parts
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