Development and Demonstration of Manufacturing Techniques for Joining Bimetal Shafts.

摘要

A unique heat treatment which produced excellent material properties in AMS 6304and Inconel 718is described. Joining of AMS 6304to Inconel 718by means of coextrusion,inertia welding,friction welding,flash-butt welding,and electron-beam welding was evaluated. The joining processes,material properties,and joint properties are presented. Two bimetal low pressure turbine shafts for the TF30-P-3engine were manufactured,and rig and engine tested. The joining of shafts to high pressure turbine disks by inertia welding was evaluated. The joining of,and properties obtained with, Waspaloy-to-Waspaloy,Incoloy 901-to-Incoloy 901,Inconel 718-to-Inconel 718and Waspaloy-to-Inconel 718joints are described. A bimetal heat treatment necessary for the Waspaloy-to-Inconel 718joints is presented. (Author)