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Analysis of Trimming Processes for Advanced High Strength Steels
ISSN: 1946-3979, e-ISSN: 1946-3987
Published April 14, 2008 by SAE International in United States
Citation: Golovashchenko, S. and Ilinich, A., "Analysis of Trimming Processes for Advanced High Strength Steels," SAE Int. J. Mater. Manf. 1(1):818-823, 2009, https://doi.org/10.4271/2008-01-1446.
Current die design recommendations attempt to limit the production of burrs through accurate alignment of the upper and lower edges. For common automotive exterior sheet, this translates to a gap less than 0.06mm. Unfortunately, the tolerances required by such standards often exceed the capabilities of many trim dies. The objective of the research described in this paper is to study the mechanisms of burrs generation and their impact on AHSS formability in stretch flanging. Experimental results on influence of trimming conditions on the shape of the sheared surface will be combined with the results of stretching strips after trimming.