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<p>This study describes the step-by-step manufacturing methodology adopted for manufacturing of&#xa0;brass cartridge cases intended for seat ejection systems, using sheet forming process. The properties of brass make it particularly suitable for cartridge case applications in defense systems. In seat ejection systems, cartridge cases function as safety‐critical components and must operate dependably under severe environmental and operational conditions to safeguard the pilot during emergency escape. Firing trials were conducted only after confirming the&#xa0;compliance with dimensional tolerances, mechanical properties and chemical composition of the raw material. The paper further discusses the&#xa0;key stages of the manufacturing sequence, including material selection and metallurgical evaluation, blank preparation; analysis and design considerations of the sheet forming operation; tooling and die development; intermediate annealing treatments, inspection and quality control procedures, surface finishing and protective treatments.</p>

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Cartridge Case using Sheet Metal Forming of Life Saving Device in Seat Ejection Application for Fighter Aircraft

  • 期刊论文

  • 发表日期：

    2026年5月29日

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  • Bhupesh Ambadas Parate,
  • R. K. Srivastava,
  • Rahul Sharma

摘要

This study describes the step-by-step manufacturing methodology adopted for manufacturing of brass cartridge cases intended for seat ejection systems, using sheet forming process. The properties of brass make it particularly suitable for cartridge case applications in defense systems. In seat ejection systems, cartridge cases function as safety‐critical components and must operate dependably under severe environmental and operational conditions to safeguard the pilot during emergency escape. Firing trials were conducted only after confirming the compliance with dimensional tolerances, mechanical properties and chemical composition of the raw material. The paper further discusses the key stages of the manufacturing sequence, including material selection and metallurgical evaluation, blank preparation; analysis and design considerations of the sheet forming operation; tooling and die development; intermediate annealing treatments, inspection and quality control procedures, surface finishing and protective treatments.