MAKING HOT DEFORMED POWDER MATERIALS Russian patent published in 2003 - IPC

FIELD: powder metallurgy, possibly manufacture of hot deformed powder materials on base of cuttings waste of aluminum alloys. SUBSTANCE: method is realized by disintegrating aluminum base initial material in mill; shaping blank and subjecting it to hot plastic working. Method comprises steps of working aluminum base initial material in planetary mill during time period τ = 2 - 4 hours in saturated aqueous solution of orthoboric acid with its content Css = (20 - 45) mass% ; using as aluminum base initial material cuttings waste of aluminum alloys; before hot plastic working, heating blank in air at temperature t_h = 680 - 720 C for time period τ_n = 1.5 - 2.5 min. EFFECT: lowered cost for making powdered material for constructional designation. 3 ex