Electric heating – Metal heating – By arc
Patent
1983-10-07
1986-05-13
Shaw, Clifford C.
Electric heating
Metal heating
By arc
73598, 21913021, 21913771, B23K 910
Patent
active
045888736
ABSTRACT:
A method of automatically controlling the production of a weld bead including examining with reflected ultrasound from one surface of a piece of material the position of a weld pool on the material and the position of another surface of the material, and controlling the position of the weld bead on the material from the result of said examination.
REFERENCES:
patent: 3484667 (1969-12-01), Wofsey
patent: 3726130 (1973-04-01), Hurlebaus
L. A. Lott, "Ultrasonic Detection of Molten/Solid Interfaces of Weld Pools", Materials Evaluation, 3/1984, pp. 337-341.
Jose Converti et al., "Improvement of Reliability of Welding by In-Process Sensing and Control (Development of Smart Welding Machines for Girth Welding of Pipes)", MIT Industrial Liaison Program Report, Oct. 28, 1981, pp. 56 and 57.
Thomas R. Moebus, "Automated Welding Research At MIT", MIT Industrial Liaison Program, Oct. 1981, pp. 1 and 2.
Joel M. Katz, "Ultrasonic Measurement and Control of Weld Penetration", Massachusetts Institute of Technology Archives, Jul. 30, 1980, pp. 1-147.
Idaho National Engineering Laboratory (INEL) Jan. 7, 1982, "Molten Pool Sensing for Automated Welding System".
Professor Hardt of MIT, Oct. 28, 1981, "Closed-Loop Weld Geometry Control" Automated Welding Research.
Fenn and Stroud, "The Measurement and Control of Penetration During Submerged-Arc Welding", pp. 1-5, Nov. 17, 1982, Department of Metallurgy, Brunel University.
Fenn Robert
Stroud Raymond R.
National Research Development Corp.
Shaw Clifford C.
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