Accession Number : ADA102848
Title : Internal Shear Forging Processes for Missile Primary Structures.
Descriptive Note : Final rept. 27 Sep 78-31 Mar 81,
Corporate Author : IIT RESEARCH INST CHICAGO IL
Personal Author(s) : Rajagopal,S ; Kalpakjian,S
Report Date : 20 Jul 1981
Pagination or Media Count : 120
Abstract : Technology was established for combining thermomechanical treatment (TMT) with internal shear forging in the manufacture of 2014 aluminum alloy subshells with integral internal ribs. These structures are currently fabricated from 2014-T6 sheet and plate stock by welding together the cylindrical outer skin of the subshell and a series of internal stiffening rings. The objective of the project was twofold: to enhance the properties and performance of these structures by means of TMT and to achieve cost reductions over the current (fabricated) parts as a result of single-piece construction and near net shape processing.
Descriptors : *SHEAR PROPERTIES , *ALUMINUM ALLOYS , *RINGS , THERMOMECHANICS , MECHANICAL PROPERTIES , ECONOMIC ANALYSIS , FATIGUE LIFE , STRUCTURAL ANALYSIS , TENSILE PROPERTIES , TEST METHODS , FORGING , COSTS , CRACK PROPAGATION , CORROSION RESISTANCE , INTERNAL , RESIDUAL STRESS , FATIGUE(MECHANICS) , PHOTOMICROGRAPHY , COLD WORKING
Subject Categories : Properties of Metals and Alloys
Distribution Statement : APPROVED FOR PUBLIC RELEASE