| 摘要 |
FIELD: plastic working of metals. ^ SUBSTANCE: punch for tension bending of shapes includes base and mandrel having convex shaping contour, both are fixed by means of pins through two mounting openings provided in them. Mandrel and base have two additional mounting openings and two openings for mounting holder of shape. Invention allows to bend shape at tensioning it along any closed convex contour by angles up to 360. ^ EFFECT: enhanced quality of bending shapes. ^ 4 dwg |
