DEVICE FOR PRESSING HEMISPHERICAL PRODUCTS FROM POWDER METALLURGY Russian patent published in 1994 - IPC

FIELD: powder metallurgy. SUBSTANCE: products are pressed in the device having holder 1 embracing adapter (2) positioned with a clearance fit. The product is pressed by top dies 5,6 in the chamber defined by the inner surface of insert 3. The latter is moved in into the cone opening of the adapter for deforming and inducing the appearance of lateral pressing force in the end part of the product being pressed. Annular projection positioned in direction 4 is placed in the annular bore of the insert with the clearance fit and reduced by the bore to be attached without clearance. EFFECT: increased efficiency of the process. 1 dwg