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Computer Simulation of the Forging of Fine Grain IN-718 Alloy
Metallurgical Transactions A
  • Raghavan Srinivasan, Wright State University - Main Campus
  • V. Ramnarayan
  • U. Deshpande
  • V. Jain
  • Isaac Weiss
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In recent years, there has been great emphasis on the use of computer-aided tools in process design. The key to the success of any computer modeling is the accurate knowledge of the mechanical and thermal properties of the various components of a manufacturing system. In order to develop a data base of forging properties of the nickel-base alloy IN-718, isothermal constant strain-rate compression tests were conducted on the annealed fine-grain material over the temperature range 871 °C to 1149 °C (1600 °F to 2100 °F) and strain-rate range 0. 001 to 10 s−1. Empirical relationships among flow stress, strain rate, and temperature developed based on these tests, along with experimentally measured heat-transfer and friction coefficients, were used in the program ALPID to simulate nonisothermal forging of “double-cone” specimens. The simulation results were compared with actual forging in an industrial forge press. The good agreement between simulation and forging results indicates that when a complete data base of materials properties is available, computer modeling can be used effectively to study the forging process.
Citation Information
Raghavan Srinivasan, V. Ramnarayan, U. Deshpande, V. Jain, et al.. "Computer Simulation of the Forging of Fine Grain IN-718 Alloy" Metallurgical Transactions A Vol. 24 Iss. 9 (1993) p. 2061 - 2069 ISSN: 1073-5623
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