公开(公告)号：WO2018048981A1

公开(公告)日：2018-03-15

申请号：PCT/US2017/050400

申请日：2017-09-07

Applicant: CONCURRENT TECHNOLOGIES CORPORATION

Inventor： SKOWRON, Todd ,  VALENCIA, Juan ,  RHODES, Shawn ,  BRUEGGEN, William

IPC: F42B5/28

CPC classification number: B22F3/225 ,  B21K21/04 ,  B21K21/14 ,  B22F3/1021 ,  B22F2998/10 ,  F42B5/02 ,  F42B5/16 ,  F42B5/28 ,  F42B33/00 ,  B22F2003/248

Abstract: Disclosed is a cartridge case for various caliber ammunition that consists essentially of a powdered metal and/or powdered metal alloy that is formed into the cartridge case through an injection mold processing. Also disclosed is a method for forming a cartridge case, which may include use of Metal Injection Molding ("MIM") processes to produce the cartridge case which retains a primer, propellant, and/or a bullet. The method can include metal injection molding an initial part, and also at least one of tapering and trimming the initial part to form the finished cartridge case. Further embodiments can include the use of Finite Element Method (FEM) analysis to develop an optimized MIM design.

Abstract translation: 本发明公开了一种用于各种口径弹药的弹壳，其基本上由通过注射模制处理形成到弹壳中的粉末金属和/或粉末金属合金组成。 还公开了一种用于形成盒壳体的方法，其可以包括使用金属注射成型（“MIM”）工艺来制造保持底漆，推进剂和/或子弹的盒壳体。 该方法可以包括金属注塑成型初始部分，并且还包括渐缩和修剪初始部分中的至少一个以形成完成的盒体外壳。 其他实施例可以包括使用有限元方法（FEM）分析来开发优化的MIM设计。