Method for producing high density refractory metal warhead liners from single phase materials

摘要

A process for producing high density refractory metal warhead liners (30) from near net shape blanks (20). A shaped mold is filled with pure or solid solution molybdenum or tungsten powders (200). The powders may be isostatically pressed (202) and sintered (204) to form a near net shape blank (206). A hot isostatic press (210) may be used in combination with these steps or by itself to form the near net shape blank (206). The hot isostatic press (210) densifies the near net shape blank (206) to at least 90% of theoretical density. Where wrought properties are desired, a final forging step is performed (214). Alternatively, a process such as vacuum plasma spraying may be used to form the near net shape blank. A hot isostatic press (210) densifies the near net shape blank. A final machining step (218) achieves a finished refractory metal warhead liner (30).