Dynamic material modeling in hot forging
Abstract
A dynamic material model that characterized flow behavior in the workpiece under forging conditions was required to optimize the process and produce defectfree product at minimum cost. Constitutive equations describe the relationship between stress, strain rate, and temperature under forging conditions. Using aluminum alloy 7050, numerous deformation experiments were conducted to fully characterize constitutive equation variables. A thorough description of the experimental arrangement was provided. Flow data and efficiency data were assembled into a threedimensional plot of temperature vs. strain rate vs. deformation efficiency to produce an efficiency map. The efficiency map provided the information required for optimization of forging process design. The results of dynamic modeling of the material were used in simulating the isothermal forging of a particular part. Recommendations concerning optimum preform design and processing conditions were reported.
 Authors:
 (Missouri Univ., Columbia, MO (United States))
 Publication Date:
 Research Org.:
 AlliedSignal Aerospace Co., Kansas City, MO (United States). Kansas City Div.; Missouri Univ., Columbia, MO (United States)
 Sponsoring Org.:
 USDOE; USDOE, Washington, DC (United States)
 OSTI Identifier:
 5529716
 Report Number(s):
 KCP6134502
ON: DE92012109
 DOE Contract Number:
 AC0476DP00613
 Resource Type:
 Technical Report
 Country of Publication:
 United States
 Language:
 English
 Subject:
 36 MATERIALS SCIENCE; 99 GENERAL AND MISCELLANEOUS//MATHEMATICS, COMPUTING, AND INFORMATION SCIENCE; ALUMINIUM ALLOYS; FORGING; COMPUTERIZED SIMULATION; DEFORMATION; DYNAMICS; FLOW STRESS; MATHEMATICAL MODELS; PROGRESS REPORT; STRAIN RATE; TEMPERATURE DEPENDENCE; ALLOYS; DOCUMENT TYPES; FABRICATION; MATERIALS WORKING; MECHANICS; SIMULATION; STRESSES; 360101*  Metals & Alloys Preparation & Fabrication; 990200  Mathematics & Computers
Citation Formats
ElGizawy, A.S.. Dynamic material modeling in hot forging. United States: N. p., 1992.
Web.
ElGizawy, A.S.. Dynamic material modeling in hot forging. United States.
ElGizawy, A.S.. 1992.
"Dynamic material modeling in hot forging". United States.
doi:.
@article{osti_5529716,
title = {Dynamic material modeling in hot forging},
author = {ElGizawy, A.S.},
abstractNote = {A dynamic material model that characterized flow behavior in the workpiece under forging conditions was required to optimize the process and produce defectfree product at minimum cost. Constitutive equations describe the relationship between stress, strain rate, and temperature under forging conditions. Using aluminum alloy 7050, numerous deformation experiments were conducted to fully characterize constitutive equation variables. A thorough description of the experimental arrangement was provided. Flow data and efficiency data were assembled into a threedimensional plot of temperature vs. strain rate vs. deformation efficiency to produce an efficiency map. The efficiency map provided the information required for optimization of forging process design. The results of dynamic modeling of the material were used in simulating the isothermal forging of a particular part. Recommendations concerning optimum preform design and processing conditions were reported.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = 1992,
month = 3
}

A dynamic material model that characterized flow behavior in the workpiece under forging conditions was required to optimize the process and produce defectfree product at minimum cost. Constitutive equations describe the relationship between stress, strain rate, and temperature under forging conditions. Using aluminum alloy 7050, numerous deformation experiments were conducted to fully characterize constitutive equation variables. A thorough description of the experimental arrangement was provided. Flow data and efficiency data were assembled into a threedimensional plot of temperature vs. strain rate vs. deformation efficiency to produce an efficiency map. The efficiency map provided the information required for optimization of forgingmore »

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