Effect of Punch Strike Application Strategies on Forming of Fuselage Panel Lay-Up Mold

Abstract

This study examines how three distinct punch strike application techniques affect the cold forming of a 25 mm thick Invar FeNi36 plate into a lay-up mold for an aviation fuselage panel. In each technique, the same number of punch strikes were delivered at various plate positions in varied sequences. The Finite Element Method (FEM) was employed to evaluate the effectiveness of the aforementioned strategies. The most effective approach was the one that produced a form that was most similar to the intended plate form. Additionally, for each stroke of the strategies, the temperature rise, equivalent plastic strain, and maximum stress values of the plate under the punch were compared when the plate was in contact with the mold.

Keywords

• Invar FeNi36
• Invar FeNi36
• Finite Element Analysis
• Punch Strike Strategy
• Cold Forming

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