FIELD: metallurgy.
SUBSTANCE: device contains matrix, semi-matrix of which are located in top and bottom basis. Complex punch is connected to movable top plate of die block. Punch consists of whole polyurethane end cap of multiuse. Volume of end cap is equal to volume of finished branch made of flexible filler. Filler is implemented in the form of wireline wipers. In holder of punch it is through channel for removing outside the excessive flexible filler through reflector and side opening. For hard impression of blank into butt it is used persistent bushing with collar, which allows bevel from the side of minor radius of branch. Bushing-filter serves pressure regulator. Split die forms closed profile of finished branch.
EFFECT: improvement of quality of formed branches, ability of multiuse polyurethane end cap and prevention of bumps formation at receiving of product with changing cross section and high angle of bending.
1 dwg
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