研究目的
To simulate and analyze the forming of the H62 foil subjected to multi-pulse laser dynamic forming (LDF) using ABAQUS software, and to understand the influence of deformation process and peak pressure on deformation behaviors.
研究成果
The multi-pulsed LDF improves the limit depth and quality of the H62 foil effectively compared with single-pulsed LDF. Suitable peak pressure and impact number will achieve large limit forming depth and favorable quality of H62 foil.
研究不足
The study focuses on simulation and does not include real-time monitoring during the experiment. The influence of heat effect is not taken into consideration in the simulation.
1：Experimental Design and Method Selection:
The ABAQUS/Explicit code is adopted to simulate the multi-pulsed LDF process, including two analysis steps in each pressure pulse. The Johnson–Cook model is used to reflect the stress–strain relationship in high material strain rate.
2：Sample Selection and Data Sources:
H62 Cu alloy foil is used, with parameters related to physical and mechanical properties listed in the paper.
3：List of Experimental Equipment and Materials:
ABAQUS software is used for simulation. The diameter of the lower mould is 1 mm, and the corner radius of the cutting edge is 0.1 mm.
4：1 mm.
Experimental Procedures and Operational Workflow:
4. Experimental Procedures and Operational Workflow: The simulation includes applying pressure pulse and achieving quasi-steady state in steps. The contact type between H62 foil and the mould is set as surface-to-surface contact.
5：Data Analysis Methods:
The equivalent plastic strain and axial speed contour of H62 foil are analyzed to understand the deformation process.
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