公开(公告)号：US20090185908A1

公开(公告)日：2009-07-23

申请号：US12017226

申请日：2008-01-21

申请人： Vincent Chung ,  Howard W. Swanson, JR. ,  Brad Bazzell ,  Brian Berry ,  Clayton Nutter ,  Daniel Ryan

发明人： Vincent Chung ,  Howard W. Swanson, JR. ,  Brad Bazzell ,  Brian Berry ,  Clayton Nutter ,  Daniel Ryan

IPC分类号： F03B3/12 ,  B23K20/12

CPC分类号： B23K20/1205 ,  B23K2101/001

摘要： The present invention provides a linear friction welded blisk of a gas turbine engine and method of fabricating the blisk. The blisk includes a blisk hub having a curved periphery and having a central axis formed therethrough. At least one blade joining stub including a planar weld joint surface to which at least one airfoil blade may be welded by linear friction welding is formed about the periphery of the blisk hub. The planar weld joint surface is formed in a plane parallel to the central axis of the blisk hub thereby providing for linear friction welding of the airfoil blade to the planar weld joint surface in a tangential, chordal, or axial direction. The planar weld joint surface reduces the complexity of the linear friction welding machines and tooling, and further provides for an increase in blade count and leading edge accessibility.

摘要翻译： 本发明提供了一种燃气涡轮发动机的线性摩擦焊接叶片及其制造方法。 叶片包括具有弯曲周边并具有穿过其形成的中心轴线的叶片轮毂。 至少一个叶片接合短截线，其包括平面焊接接头表面，至少一个翼型叶片可以通过线性摩擦焊接而被焊接在其周边。 平面焊接面形成在与叶片毂的中心轴线平行的平面中，从而提供翼型叶片在切向，弦向或轴向方向上与平面焊接面的线性摩擦焊接。 平面焊接面降低了线性摩擦焊接机和工具的复杂性，并进一步提高了刀片数量和前沿可达性。