FIELD: powder metallurgy, namely manufacture of cutting members of composition materials on base of diamond and(or) cubic boron nitride for cutters, milling cutters, drilling and dressing tools.
SUBSTANCE: method comprises steps of placing in press-mold charge 2 containing powder of super-hard materials and binder; at first pressing charge while simultaneously pressing out binder through gaps 4 between die 1 and punch 3. Value h of gaps is no more than minimum size of grains of powder of super-hard material. In order to form metallic layer, pressed out binder is pressed in addition in gap-free press-mold until it distributes along surface of blank. Both stages of pressing process are realized at temperature providing fluidity of binder. Formed cutting member includes cutting layer with stable concentration of super-hard materials exceeding 62 vol.% and metallic layer providing reliable joining of cutting member with holder.
EFFECT: improved quality of cutting member.
6 cl, 8 dwg
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