Accession Number : AD0819501

Title :   PROCESS DEVELOPMENT FOR PRECISION RADIAL FORGING INTEGRAL TURBINE WHEELS.

Descriptive Note : Interim technical progress rept. no. 7, 1 May-30 Jul 67,

Corporate Author : TRW EQUIPMENT LABS CLEVELAND OH

Personal Author(s) : Korecky, G. R. ; Redlinger, Robert W.

Report Date : 30 AUG 1967

Pagination or Media Count : 40

Abstract : Development of the precision radial forging process was continued with full-scale forging of integral blade turbine wheels. Phase III involved an evaluation of the effectiveness of precision radial forging complex reaction and impulse-type, integral blade turbine wheels on a prototype production basis. Waspaloy and Mo-0.5%Ti forged preforms were used for the forging studies. Results indicated that present technology is not sufficiently advanced to produce complex turbine wheels from the higher strength superalloys and refractory alloys. The major deficiency in the process is the application of a segmented closed-die system operating under severe stress conditions created by the turbine wheel blade configurations. (Author)

Descriptors :   *FORGING), (*TURBINE WHEELS, NICKEL ALLOYS, MOLYBDENUM ALLOYS, DIES, STAINLESS STEEL, LUBRICANTS.

Subject Categories : Metallurgy and Metallography
      Fabrication Metallurgy

Distribution Statement : APPROVED FOR PUBLIC RELEASE