Abstract
The diffusion bonding procedure between two stages of a nickel alloy drum rotor surrounded by a double-wrapped heating coil is modeled by computing the time-dependent temperature field and stresses. The power deposition in the workpiece is modeled by numerically solving the low-frequency Maxwell equations in the enclosure. Nonlinearities due to temperature dependent electrical, thermal, and stress-related properties are handled by iterating between the solvers for the magnetic potential, temperature, and stress. Parametric studies are performed to investigate the influence of coil placement and pressure load on the temperature and stresses near the bond joint.
Notes
M. Leon(s present address is Pratt & Whitney Government Engine Business, West Palm Beach, FL, USA.
Address correspondence to Dr. Craig J. Saltiel, SCRAM Technology, Inc., 18 Dunwoodie Road, Glenmont, NY 12077, USA. E-mail: [email protected].