PROCESS DEVELOPMENT OF SHAPED MAGNESIUM-LITHIUM CASTINGS
Technical research rept.
FRANKFORD ARSENAL PHILADELPHIA PA PITMAN-DUNN RESEARCH LABS
Pagination or Media Count:
A process was developed for successfully casting a number of prototype aerospace components using the ternary magnesium-lithium-silicon alloy. These components contained many of the design elements anticipated in aerospace hardware of this type. It was found that conventional magnesium sand foundry practice was not satisfactory. A new molding material, based upon bentonite-bonded graphite powder, was employed. Melting and pouring practice was also modified to cope with the reactive nature of the alloy. The radiographic quality of the castings and mechanical properties of test bars sectioned from the castings were evaluated and found to be satisfactory and to correspond with earlier experience on separately cast test bars.
- Fabrication Metallurgy
- Unmanned Spacecraft