RADIAL EXTRUSION OF TURBOJET DISCS
Abstract
Procedures for the machining of full-scale steel and Ti alloy disks for turbojet engines are detailed. Six steel disks were produced to specification, and mechanical property data are presented. Difficulties were encountered in the production of Ti alloy disks. Distortion and excessive shrinkage of the disk occurred when cooled from the forging temperature. Distortion was partially corrected by the use of fixtures during annealing but was encountered again during rough machining. Excessive grinding burns and burrs were corrected by the use of coolants. Broaching of the fir tree slots was accomplished at speeds of 30 to 35 fpm by the use of a 2:1 mineral seal oil-fatty chlorinated hydrocarbons and sulphurized polymerized terpenes solution as a coolant.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 30, 1961
- Accession Number
- AD0261753
Entities
People
- Robert W. Krohn