Abstract
Multistage incremental sheet metal forming (MS-ISF) is used to produce sheet metal parts with a large forming angle. Similar to the forming limit diagram (FLD) in stamping, FLD in MS-ISF is not sufficiently reliable due to the effect of loading path. To solve this problem, a method to calculate the forming limit stress diagram (FLSD) from FLD was proposed. Experiments proved that FLSD is a reliable fracture indicator that is unaffected by the loading path in MS-ISF.
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Wu, M., Zha, G. & Zirui, G. FEA of vertical parts formed with multistage incremental sheet metal forming based on the forming limit stress diagram. Int J Adv Manuf Technol 93, 2155–2160 (2017). https://doi.org/10.1007/s00170-017-0630-5
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DOI: https://doi.org/10.1007/s00170-017-0630-5