Accession Number : AD0750180

Title :   Forged Metal Powder Products.

Descriptive Note : Technical rept.,

Corporate Author : TRW INC CLEVELAND OHIO

Personal Author(s) : Lally,Frank T. ; Toth,Istvan J. ; DiBenedetto,Joseph

Report Date : AUG 1972

Pagination or Media Count : 95

Abstract : Minimum deformation forging of prealloyed steel powders was used to produce complex-shaped components having a quality level equivalent to conventional forgings. Various 4600 and 4300 prealloyed steel powders, mixed with graphite to give 0.40% carbon, were investigated. Sintered compacts were forged with conventional and minimum-deformation type tooling. Minimum deformation forging produced high-quality flash-free forgings with no draft angles. Results of the study on the 4640 composition have shown that P/M forgings are competitive with conventionally wrought materials. Forgings with near theoretical density (99% plus) were capable of providing notched impact strength and ductility comparable to bar stock forgings. (Author)

Descriptors :   (*FORGING, *POWDER METALLURGY), STEEL, POWDER METALS, MANUFACTURING, MECHANICAL PROPERTIES, COMPACTING

Subject Categories : Fabrication Metallurgy

Distribution Statement : APPROVED FOR PUBLIC RELEASE