| 摘要 |
FIELD: metallurgy. ^ SUBSTANCE: invention relates to metal deformation process, particularly to devices for cutting of pipes in punches. Device contains top and bottom plate, movable cutter, located in sliding member, mounted with ability of vertical movement from sliding member of punch in casing, installed on bottom plate, immovable cutter, located in casing, and mandrels. Movable and immovable cutters are located in jacks implemented, correspondingly, in sliding member and in casing and are installed with ability of rotation in it for wear. ^ EFFECT: upgraded of punch resistance and durability of knifes. ^ 3 dwg |
