公开(公告)号：US20070272350A1

公开(公告)日：2007-11-29

申请号：US11802470

申请日：2007-05-23

申请人： Wayne E. Voice ,  Junga Mei

发明人： Wayne E. Voice ,  Junga Mei

IPC分类号： B32B37/00

CPC分类号： B23K20/021 ,  B23K2101/001 ,  B23K2103/14 ,  F01D5/34 ,  F05D2230/30 ,  F05D2230/312 ,  F05D2230/40 ,  F05D2300/133

摘要： A first workpiece comprises a compressor disc (2) manufactured from a titanium alloy forging. A number of second workpieces, aerofoil blades (4), also forged from titanium alloy are arranged for attachment to the disc (2). The aerofoil blades (4) are evenly distributed around the radially outer surface (8) of the disc (2) and the root (6) of each blade (4) is joined to the surface (8) of the disc (2) by hot isostatic pressing. To assist in joining the blades (4) to the disc (2), one of the surfaces (6 or 8) is modified by reducing the density by 50-70% to a depth of 0.25-0.5 mm. This is achieved by depositing a layer of metal powder on the surface. Modifying one of the surfaces (6 or 8) forms a compliant layer between the workpieces (2 and 4). When pressurised this compliant layer accommodates distortion during consolidation and also acts to disrupt the other surface to reveal virgin material and enhance bonding.

摘要翻译： 第一工件包括由钛合金锻造制成的压缩机盘（2）。 多个第二工件，也由钛合金锻造的翼面叶片（4）被布置成附接到盘（2）。 翼型叶片（4）均匀分布在盘（2）的径向外表面（8）周围，并且每个叶片（4）的根部（6）通过以下方式连接到盘（2）的表面（8）： 热等静压。 为了有助于将叶片（4）连接到盘（2），通过将密度减小50-70％至0.25-0.5mm的深度来改变其中一个表面（6或8）。 这是通过在表面上沉积一层金属粉末来实现的。 修改其中一个表面（6或8）在工件（2和4）之间形成柔顺层。 当加压时，该柔性层在固结期间容纳变形，并且还用于破坏另一表面以露出原始材料并增强粘合。