New Methods in BPR, Case Study: Al5083 Manufacturing Process

Microformability and superplastic behavior of Al5083 alloy was investigated by finite element analysis and the simulation result was compared with the previously reported experimental result. Micro V-groove die was modeled to analyze the effects of forming time, load, temperature, and interface friction on the microformability of the Al5083 alloy. Geometrical transferability was used to represent the formed surface topology and the area of material flow into the die groove. The microformability of the Al5083 alloy was estimated by Rf values (=Af/Ag), where Af is the filled area of microformed sample, and Ag is cross sectional area of V-groove. The simulation result suggests that the temperature and the interface friction have significant effects on the accuracy of the hot microforming model. Also, high strain rate detected during microforming simulation is suspected to be another important parameter affecting microformability.