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    6.
    发明专利
    未知

    公开(公告)号：BE872539A

    公开(公告)日：1979-03-30

    申请号：BE192151

    申请日：1978-12-05

    Applicant: UNITED TECHNOLOGIES CORP

    Inventor： WALKER BRYANT HARDING ,  BOGARD RALPH BROMLEY

    IPC: B21J5/02 ,  B21J13/02 ,  B21K1/32 ,  B21K1/36 ,  B21J

    Abstract: A forging apparatus has an upper die and lower die with the lower die being positioned on a die stack with the upper die being movable by a ram, said upper and lower dies having cylindrical portions extending towards each other where the rim of the formed disc is to be located. Blade dies are positioned around the radial opening presented between the two faces of the upper and lower die as they rest on a preformed blank, said cylindrical array of blade dies being held in position by two wires around their outer circumference and supported in the forging operation by a cylindrical back-up die; the cylindrical array of blade dies being slanted outwardly at its upper and lower edge from where they engage the cylindrical portions, forming an upper and lower annular cam surface. Ring members are positioned around both of said cylindrical sections for slidable movement thereon, said ring members being of wedge-shape cross-section so that as they are moved inwardly, when they contact said cam surfaces, they will cam said blade dies radially outward. Actuating pins extend from each of said ring members to a location above and below their respective upper and lower dies where they can be actuated by spider arms fixed to an actuating shaft which extends through their respective ram or die stack. Knockout pins are located in the upper and lower dies and are actuated by rods extending through each of the actuating shafts.

    8.
    发明专利
    未知

    公开(公告)号：DK155783B

    公开(公告)日：1989-05-16

    申请号：DK560678

    申请日：1978-12-13

    Applicant: UNITED TECHNOLOGIES CORP

    Inventor： WALKER BRYANT HARDING ,  BOGARD RALPH BROMLEY

    IPC: B21J5/02 ,  B21J13/02 ,  B21K1/32 ,  B21K1/36

    Abstract: A forging apparatus has an upper die and lower die with the lower die being positioned on a die stack with the upper die being movable by a ram, said upper and lower dies having cylindrical portions extending towards each other where the rim of the formed disc is to be located. Blade dies are positioned around the radial opening presented between the two faces of the upper and lower die as they rest on a preformed blank, said cylindrical array of blade dies being held in position by two wires around their outer circumference and supported in the forging operation by a cylindrical back-up die; the cylindrical array of blade dies being slanted outwardly at its upper and lower edge from where they engage the cylindrical portions, forming an upper and lower annular cam surface. Ring members are positioned around both of said cylindrical sections for slidable movement thereon, said ring members being of wedge-shape cross-section so that as they are moved inwardly, when they contact said cam surfaces, they will cam said blade dies radially outward. Actuating pins extend from each of said ring members to a location above and below their respective upper and lower dies where they can be actuated by spider arms fixed to an actuating shaft which extends through their respective ram or die stack. Knockout pins are located in the upper and lower dies and are actuated by rods extending through each of the actuating shafts.

    9.
    发明专利
    未知

    公开(公告)号：NO148511B

    公开(公告)日：1983-07-18

    申请号：NO784166

    申请日：1978-12-12

    Applicant: UNITED TECHNOLOGIES CORP

    Inventor： WALKER BRYANT HARDING ,  BOGARD RALPH BROMLEY

    IPC: B21J5/02 ,  B21J13/02 ,  B21K1/32 ,  B21K1/36

    Abstract: A forging apparatus has an upper die and lower die with the lower die being positioned on a die stack with the upper die being movable by a ram, said upper and lower dies having cylindrical portions extending towards each other where the rim of the formed disc is to be located. Blade dies are positioned around the radial opening presented between the two faces of the upper and lower die as they rest on a preformed blank, said cylindrical array of blade dies being held in position by two wires around their outer circumference and supported in the forging operation by a cylindrical back-up die; the cylindrical array of blade dies being slanted outwardly at its upper and lower edge from where they engage the cylindrical portions, forming an upper and lower annular cam surface. Ring members are positioned around both of said cylindrical sections for slidable movement thereon, said ring members being of wedge-shape cross-section so that as they are moved inwardly, when they contact said cam surfaces, they will cam said blade dies radially outward. Actuating pins extend from each of said ring members to a location above and below their respective upper and lower dies where they can be actuated by spider arms fixed to an actuating shaft which extends through their respective ram or die stack. Knockout pins are located in the upper and lower dies and are actuated by rods extending through each of the actuating shafts.

    10.
    发明专利
    未知

    公开(公告)号：DE2852054A1

    公开(公告)日：1979-06-28

    申请号：DE2852054

    申请日：1978-12-01

    Applicant: UNITED TECHNOLOGIES CORP

    Inventor： WALKER BRYANT HARDING ,  BOGARD RALPH BROMLEY

    IPC: B21J5/02 ,  B21J13/02 ,  B21K1/32 ,  B21K1/36 ,  B21K3/04

    Abstract: A forging apparatus has an upper die and lower die with the lower die being positioned on a die stack with the upper die being movable by a ram, said upper and lower dies having cylindrical portions extending towards each other where the rim of the formed disc is to be located. Blade dies are positioned around the radial opening presented between the two faces of the upper and lower die as they rest on a preformed blank, said cylindrical array of blade dies being held in position by two wires around their outer circumference and supported in the forging operation by a cylindrical back-up die; the cylindrical array of blade dies being slanted outwardly at its upper and lower edge from where they engage the cylindrical portions, forming an upper and lower annular cam surface. Ring members are positioned around both of said cylindrical sections for slidable movement thereon, said ring members being of wedge-shape cross-section so that as they are moved inwardly, when they contact said cam surfaces, they will cam said blade dies radially outward. Actuating pins extend from each of said ring members to a location above and below their respective upper and lower dies where they can be actuated by spider arms fixed to an actuating shaft which extends through their respective ram or die stack. Knockout pins are located in the upper and lower dies and are actuated by rods extending through each of the actuating shafts.

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