公开(公告)号：US5106012A

公开(公告)日：1992-04-21

申请号：US225907

申请日：1988-07-29

申请人： John M. Hyzak ,  Timothy E. Howson ,  Wilford H. Couts, Jr. ,  Steven H. Reichman ,  Hugo E. Delgado ,  Daniel D. Kruger ,  Michael E. Sauby ,  Sulekh C. Jain ,  Bruce P. Bardes ,  Richard G. Menzies ,  Swami Ganesh

发明人： John M. Hyzak ,  Timothy E. Howson ,  Wilford H. Couts, Jr. ,  Steven H. Reichman ,  Hugo E. Delgado ,  Daniel D. Kruger ,  Michael E. Sauby ,  Sulekh C. Jain ,  Bruce P. Bardes ,  Richard G. Menzies ,  Swami Ganesh

IPC分类号： B21J5/00 ,  B21K1/32 ,  F01D5/02

CPC分类号： B21K1/32 ,  B21J5/00 ,  F01D5/02 ,  Y10S72/70 ,  Y10T29/49316 ,  Y10T29/4932

摘要： Two pieces of metal are bonded together at a surface by placing the two pieces into contact at the surface and forging the two pieces in a die which causes substantial displacement of the metal originally at the surface in a direction parallel to and outwardly from the edges of the surface. In this way, many of the defects which are potentially present at the original surface are displaced with moving metal away from the original contact between the two pieces of metal into sacrificial ribs and the remaining defects are exposed to significant strain. A portion of the displaced metal which contains many of the defects and which forms the sacrificial ribs is removed from the resulting bonded work piece as the sacrificial ribs are removed from the work piece. The result is a bond with superior properties and with a bond surface which can be located very precisely. This system is particularly appropriate for forming dual-alloy high-pressure turbine disks for gas turbines in which an annular peripheral ring of a second super-alloy is bonded to a central core of a first super-alloy. The system is particularly effective if, prior to forging, surfaces to be bonded are closely shape-conforming, are very clean, and are diffusion-bonded using hot isostatic pressing while the surfaces are gas-free. The sacrificial ribs are formed by vents in the impression of the forging dies. The vents are adjacent to the outer edges of the bond surface. The system may be accomplished by using one or more strikes of the same dies, or may include multiple strikes in which only one side of the bond is vented during each strike.

摘要翻译： 两块金属在表面上通过将两个部件在表面上接触并且将两个部件锻造在模具中而在一个表面上结合在一起，该模具使原来在表面处的金属在平行于和向外从 表面。 以这种方式，可能存在于原始表面的许多缺陷被移动的金属从两块金属之间的原始接触件移开到牺牲肋中，并且剩余的缺陷暴露于显着的应变。 当牺牲肋从工件上移除时，包含许多缺陷并形成牺牲肋的位移金属的一部分从所得到的粘合工件中被去除。 结果是具有优异性能和可以非常精确地定位的粘结表面的粘结。 该系统特别适用于形成用于燃气轮机的双合金高压涡轮盘，其中第二超合金的环形外围环结合到第一超级合金的中心芯。 如果在锻造之前，要结合的表面紧密形状，非常干净，并且在表面无气体时使用热等静压进行扩散粘合，该系统是特别有效的。 牺牲肋由锻造模具的印模形成。 通风口与接合表面的外边缘相邻。 该系统可以通过使用相同模具的一个或多个冲击来实现，或者可以包括多次冲击，其中在每次冲击期间仅释放粘结件的一侧。

公开(公告)号：US06240765B1

公开(公告)日：2001-06-05

申请号：US09541216

申请日：2000-04-03

申请人： Hugo E. Delgado ,  Timothy E. Howson ,  Jack M. Hyzak ,  Paul D. Antaya ,  Thomas F. Doherty ,  Paul J. Gargolinski ,  Peter R. Jepson ,  Martin M. Morra ,  James E. Shannon, III

发明人： Hugo E. Delgado ,  Timothy E. Howson ,  Jack M. Hyzak ,  Paul D. Antaya ,  Thomas F. Doherty ,  Paul J. Gargolinski ,  Peter R. Jepson ,  Martin M. Morra ,  James E. Shannon, III

IPC分类号： B21J0502

CPC分类号： B21J5/008 ,  B21J5/00 ,  B21J5/02

摘要： A forging press includes a die set having a stationary die, a movable die in facing-but-spaced-apart relation to the stationary die along a press axis and defining a workpiece volume therebetween, and an exterior constraint extending circumferentially around the workpiece volume. The movable die has a base level region lying generally in a workpiece plane perpendicular to the press axis, and three rotationally symmetric segments raised above the base level region. Each of the segments forms an angular segment of a disk having an included segment angle and that is angularly separated from the other segments. A press mechanism includes a axial drive operable to move the movable die in a direction parallel to the press axis, and an indexing drive operable to rotate the movable die about the press axis by an indexing rotational angle. In operation, the axial drive performs a press stroke and retracts, the indexing drive rotates the movable die by the indexing rotational angle of less than the included segment angle, and the axial drive performs another press stroke. By repeating these steps, the entire workpiece is forged incrementally.

摘要翻译： 锻造压力机包括具有固定模具的模具组，沿着压力轴线与固定模具面对且间隔开的关系的活动模具，并且在其间限定工件体积，以及围绕工件体积周向延伸的外部约束。 可移动模具具有基本水平区域，其基本上位于垂直于加压轴线的工件平面中，并且三个旋转对称部分在基部水平区域上方升高。 每个段形成具有包括段角度并且与其它段成角度地分离的盘的角度段。 压力机构包括轴向驱动器，其可操作以沿平行于压力轴线的方向移动可动模具;以及分度驱动器，其可操作以使可移动模具围绕压力轴线旋转分度旋转角度。 在操作中，轴向驱动执行冲压行程并缩回，分度驱动器通过小于所包括的分段角度的分度旋转角度使可动模具旋转，并且轴向驱动执行另一冲压行程。 通过重复这些步骤，整个工件逐渐锻造。

公开(公告)号：US6044685A

公开(公告)日：2000-04-04

申请号：US919803

申请日：1997-08-29

申请人： Hugo E. Delgado ,  Timothy E. Howson ,  Jack M. Hyzak ,  Paul D. Antaya ,  Thomas F. Doherty ,  Paul J. Gargolinski ,  Peter R. Jepson ,  Martin M. Morra ,  James E. Shannon, III

发明人： Hugo E. Delgado ,  Timothy E. Howson ,  Jack M. Hyzak ,  Paul D. Antaya ,  Thomas F. Doherty ,  Paul J. Gargolinski ,  Peter R. Jepson ,  Martin M. Morra ,  James E. Shannon, III

IPC分类号： B21J5/00 ,  B21J5/02 ,  B21J9/02

CPC分类号： B21J5/008 ,  B21J5/00 ,  B21J5/02

摘要： A forging press includes a die set having a stationary die, a movable die in facing-but-spaced-apart relation to the stationary die along a press axis and defining a workpiece volume therebetween, and an exterior constraint extending circumferentially around the workpiece volume. The movable die has a base level region lying generally in a workpiece plane perpendicular to the press axis, and three rotationally symmetric segments raised above the base level region. Each of the segments forms an angular segment of a disk having an included segment angle and that is angularly separated from the other segments. A press mechanism includes a axial drive operable to move the movable die in a direction parallel to the press axis, and an indexing drive operable to rotate the movable die about the press axis by an indexing rotational angle. In operation, the axial drive performs a press stroke and retracts, the indexing drive rotates the movable die by the indexing rotational angle of less than the included segment angle, and the axial drive performs another press stroke. By repeating these steps, the entire workpiece is forged incrementally.

摘要翻译： 锻造压力机包括具有固定模具的模具组，沿着压力轴线与固定模具面对且间隔开的关系的活动模具，并且在其间限定工件体积，以及围绕工件体积周向延伸的外部约束。 可移动模具具有基本水平区域，其基本上位于垂直于加压轴线的工件平面中，并且三个旋转对称部分在基部水平区域上方升高。 每个段形成具有包括段角度并且与其它段成角度地分离的盘的角度段。 压力机构包括轴向驱动器，其可操作以沿平行于压力轴线的方向移动可动模具;以及分度驱动器，其可操作以使可移动模具围绕压力轴线旋转分度旋转角度。 在操作中，轴向驱动执行冲压行程并缩回，分度驱动器通过小于包括的分段角度的分度旋转角度使可动模具旋转，并且轴向驱动执行另一冲压行程。 通过重复这些步骤，整个工件逐渐锻造。