Comparison of formabilities of stainless steel 316L bipolar plates using static and dynamic load stamping

A Study on the Current status of Metal Bipolar Plate Materials and Stamping and Forming for Fuel Cells

“…Min-June Kim et al [46] used various frequencies of sine, square and ramp waves for dynamic load stamping and static load stamping tests in their study of the effect of static and dynamic loading on the stamping and forming properties of stainless steel 316L bipolar plates,the experimental results show that the bipolar plate bipolar plate channels with smaller runner depths cannot be formed correctly by static load stamping, the experimental results of dynamic load stamping and forming show that sine wave and square wave loads are more suitable for processing bipolar plates than oblique waves, and the forming effect is better than that of static load processing.Bong Hyuk et al [47] explored the improvement of unconventional forming properties of bipolar plates and investigated the increase in formability of unconventionally formed profiles programmed in a servo press using finite element analysis and performed forming tests. Four different forming profiles were considered to investigate the effect of forming profile on formability and shape accuracy, it was found that stress relaxation and variable contact conditions are the main mechanisms to improve formability during multistep progressive forming hold and swing.Chen et al [48] investigated the effect of springback on the forming properties of multi-step stamping and forming of metal bipolar plates, in which it was found that the feeding speed and stamping speed and stamping load during multi-step stamping and forming can cause springback and affect the forming properties.Majid Elyasi et al [49] studied the dimensional accuracy of metal bipolar plate forming in serpentine flow fields, in diagonal, longitudinal and transverse directions (directional dimensional accuracy).…”

Analysis of Formability in Stamping of Metallic Bipolar Plates with Parallel Flow Field for Proton Exchange Membrane Fuel Cells using Adaptive Neuro-fuzzy Inference System

“…Also, a smaller punch radius leads to dramatically thinning. Kim et al [17] compared the formability of the SS316L BPPs in stamping process by static and dynamic forces. The formability of the stamped BPPs was examined from various points of view (force type, size of force, die radius, and the cycle number).…”

Application of the Progressive Forming Method in Simulation and Experimental Study of Rectangular Fins in a Heat Exchanger

“…If a ductile plate is used for forming, a fin with enough depth can be formed. However, high-speed forming should be executed to increase productivity [13][14][15][16].…”