Bladed disc assembly method by hip diffusion bonding,申请号US19930135440-传众专利搜索

Bladed disc assembly method by hip diffusion bonding

申请公布号：US5390413(A)

申请号：US19930135440

申请日期：1993.10.13

申请公布日期：1995.02.21

申请人：

ROLLS-ROYCE PLC

发明人：PRATT, ANTHONY L.

分类号：B23K20/02;(IPC1-7):B23P15/00

主分类号：B23K20/02

摘要：A method of making a bladed disc assembly, of a kind used, for example, in the turbine or compressor sections of a gas turbine engine, includes forming a peripheral groove in the rim of the disc, positioning a plurality of bladed segments around the disc, each segment preferably including two or more blades extending radially from a root portion, each segment having its root portion located in the groove, securing the root portions in the groove by means of electron beam welding to form circumferential seam welds at either side of the root portions and axial seam welds between the root portions of adjacent segments thereby forming a vacuum seal, and diffusion bonding the root portions and the rim of the disc by means of isostatic hot gas pressure bonding.