Dynamic material modeling in hot forging. Progress report 4
- Missouri Univ., Columbia, MO (United States)
A dynamic material model that characterized flow behavior in the workpiece under forging conditions was required to optimize the process and produce defect-free 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 three-dimensional 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.
- Research Organization:
- Allied-Signal Aerospace Co., Kansas City, MO (United States). Kansas City Div.; Missouri Univ., Columbia, MO (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC04-76DP00613
- OSTI ID:
- 10138336
- Report Number(s):
- KCP-613-4502; ON: DE92012109
- Resource Relation:
- Other Information: PBD: Mar 1992
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
99 GENERAL AND MISCELLANEOUS//MATHEMATICS, COMPUTING, AND INFORMATION SCIENCE
FORGING
COMPUTERIZED SIMULATION
ALUMINIUM ALLOYS
PROGRESS REPORT
STRAIN RATE
FLOW STRESS
DYNAMICS
MATHEMATICAL MODELS
TEMPERATURE DEPENDENCE
DEFORMATION
360101
990200
PREPARATION AND FABRICATION
MATHEMATICS AND COMPUTERS