The study shows that optimizing process parameters enhances mechanical properties in L70 cartridge cases, suggesting improved manufacturing methods.
The study investigates the effects of process parameters on the mechanical properties of the 40 × 365 mm L70 cartridge case used in HEI-T shells for anti-aircraft applications. The parameters examined include the ironing ratio during the deep drawing process, annealing temperature, and heat holding time during annealing. Experiments were conducted to evaluate the influence of each parameter throughout the manufacturing process. The Taguchi method was employed to identify the optimal conditions for maximizing the tensile strength and relative elongation of the material used in the cartridge case, while minimizing the number of experiments required.
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Nguyen et al. (2025) studied this question.
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