FIELD: powder metallurgy. SUBSTANCE: process refers to manufacture of hollow billet for tools or thick-walled tubes. Tube having practically same length and passing along entire length of capsule is placed into outer capsule. Rod also passing through capsule along whole length of tube is put into tube. Space between tube and inner side of capsule wall is filled with metal powder that forms required article. Space in tube between rod and inner side of tube wall is filled with nonmetal powder. Capsule is sealed tight and closed capsule is subjected to hot isostatic pressing at temperature above 1000 C so that metal powder is pressed to achieve absolute density. EFFECT: increased efficiency of process. 8 cl, 1 dwg
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