New energy vehicle battery shell stamping parts are made of 6-series aluminum alloy (e.g., 6061) and high-strength steel composite processing. Hot stamping process increases material yield strength to over 1000MPa, with shell thickness uniformity error <0.05mm. German laser cutting equipment is used for sheet preprocessing, combined with robotic automatic loading/unloading system to achieve unmanned production, shortening single-piece processing cycle to 45 seconds. Precision flanging 工艺 on sealing groove, combined with silicone sealing ring, achieves IP67 waterproof rating. Battery shells supplied to domestic leading new energy automakers show no attenuation in sealing and structural strength after 500 cycles of -40℃ to 85℃ high-low temperature testing, with annual supply exceeding 150,000 sets.