FIELD: process engineering.
SUBSTANCE: invention relates to metal forming and can be used in machine building and metallurgy. Proposed tool comprises sleeve with wedge elements, plug stooping sleeve on one side and die holder arranged on the other side and having diametre gap to support build-up die coupled with wedge elements. Wedge elements have sections with additional forming and coupling surfaces that, combined with build-up die forming and coupling surfaces, make the product with sections of cross section additional; shape.
EFFECT: symmetric load on die holder and equal friction conditions, hence longer life and higher quality.
6 dwg
