METHOD OF PRODUCING OF MEDALS, COINS AND TOKENS OUT OF METALS OR ALLOYS PLASTIC DURING COLD WORKING Russian patent published in 2015 - IPC B44B5/00 A44C21/00 B21D22/02 B23K26/352 

FIELD: metallurgy.

SUBSTANCE: after preliminary compression of the blank surface layers its cold plastic deformation is performed by press stamps. At that die stamping of the polished local decors is performed , their negative image is made on the work surfaces of the stamps and is polished. Simultaneously with die stamping on surface of the blank of the said decors on part of their polished surfaces the markings are made. Negative images of the said markings are made of the stamp by micro engraving using the laser equipment with software. The positive image of the markings is identified on surfaces of the polished decors of the item using the magnifying optical devices.

EFFECT: high capacity without metal losses process of marking of the items made with decor, that complies with the requirements of artistic and hoarding attraction.

5 cl, 2 dwg