Control of power to an inductively heated part

Patent · Tue May 20 00:00:00 EDT 1997

OSTI ID:489109

Adkins, D R; Frost, C A; Kahle, P M; Kelley, J B; Stanton, S L

A process for induction hardening a part to a desired depth with an AC signal applied to the part from a closely coupled induction coil includes measuring the voltage of the AC signal at the coil and the current passing through the coil; and controlling the depth of hardening of the part from the measured voltage and current. The control system determines parameters of the part that are functions of applied voltage and current to the induction coil, and uses a neural network to control the application of the AC signal based on the detected functions for each part. 6 figs.

• Research Organization: AT&T Corporation; Sandia Corporation
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: AC04-76DP00789; AC04-94AL85000
• Assignee: SNL; PA: EDB-97:085648; SCA: 320303; SN: 97001799056
• Patent Number(s): US 5,630,957/A/
• Application Number: PAN: 8-371,901
• OSTI ID: 489109
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
CONTROL SYSTEMS
ELECTRIC POTENTIAL
HEATING
INDUCTION FURNACES
NEURAL NETWORKS
PROCESS CONTROL