Electric heating – Metal heating – By arc
Patent
1997-03-14
1999-08-03
Shaw, Clifford C.
Electric heating
Metal heating
By arc
21912511, 21912512, 21913771, B23K 912
Patent
active
059321237
ABSTRACT:
A mobile automated pipeline welding and quality control system comprising a gas metal arc welding carriage and a weld data monitor and acquisition unit. The welding carriage carries a welding torch, wire feed device for feeding consumable wire to the torch, an oscillator for oscillating the torch and a motorized drive mechanism for moving the carriage about a weldment. A controller for the carriage includes digital control circuitry for dosed loop control of the drive, oscillator and wire feed devices. By default, the controller operates each device at one of a plurality of pre-programmed nominal speeds selected from a mode table. The controller is responsive to drive, oscillation and wire feed speed variation signals under the control of an operator, and varies the speed of each device within speed ranges which are selected to ensure compliance with welding specifications. The monitor has voltage and current transducers for measuring current and voltage at the welding torch. The controller supplies the monitor with speed data relating to the drive, oscillator and wire feed devices. All of this information can be displayed and recorded in the monitors memory. In addition, the monitor can compute and display the heat input into the weld based on the detected welding parameters. This information allows the operator to make minute adjustments during the welding process to ensure that a weld falls within specifications.
REFERENCES:
patent: 3555239 (1971-01-01), Kerth
patent: 3581050 (1971-05-01), Brown et al.
patent: 3582967 (1971-06-01), Beckman
patent: 3689734 (1972-09-01), Burley et al.
patent: 3818176 (1974-06-01), Brown
patent: 4019016 (1977-04-01), Friedman et al.
patent: 4144992 (1979-03-01), Omae et al.
patent: 4163886 (1979-08-01), Omae et al.
patent: 4283617 (1981-08-01), Merrick et al.
patent: 4373125 (1983-02-01), Kazlauskas et al.
patent: 4375026 (1983-02-01), Kearney
patent: 4734640 (1988-03-01), Kitahori et al.
patent: 5278390 (1994-01-01), Blankenship
patent: 5397872 (1995-03-01), Baker et al.
patent: 5534676 (1996-07-01), Rinaldi et al.
patent: 5571431 (1996-11-01), Lantieri et al.
Patent Abstracts of Japan; vol. 5, No. 18 (M-053), Feb. 3, 1981; Publication Number 55147496; Publication Date Nov. 17, 1980.
Brochure re: VERAWELD, computer controlled, high deposition, multi-purpose, authomated welding system published by Vermaat Technics, Inc., Plam Coast, Florida, date unknown.
Brochure re: The LH Comet MK 2 welding system, publishing by LH and Associates (UK) LTD., United Kingdom, date unknown.
Craig John
Flynn Tim
Marhofer William E.
Sanford Shell
O.J. Pipelines Corp.
Shaw Clifford C.
LandOfFree
Mobile automated pipeline welding and quality control system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Mobile automated pipeline welding and quality control system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Mobile automated pipeline welding and quality control system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-846796