Method for controlling gas metal arc welding

Patent · Tue Apr 25 00:00:00 EDT 1989

OSTI ID:5843915

Smartt, H B; Einerson, C J; Watkins, A D

The heat input and mass input in a Gas Metal Arc welding process are controlled by a method that comprises calculating appropriate values for weld speed, filler wire feed rate and an expected value for the welding current by algorithmic function means, applying such values for weld speed and filler wire feed rate to the welding process, measuring the welding current, comparing the measured current to the calculated current, using the comparison to calculate corrections for the weld speed and filler wire feed rate, and applying corrections.

• Assignee: Dept. of Energy, Washington, DC
• Patent Number(s): US 4825038
• OSTI ID: 5843915
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420800* -- Engineering-- Electronic Circuits & Devices-- (-1989)
99 GENERAL AND MISCELLANEOUS
990220 -- Computers
Computerized Models
& Computer Programs-- (1987-1989)
ARC WELDING
AUTOMATION
COMPUTERIZED CONTROL SYSTEMS
CONTROL
CONTROL SYSTEMS
EFFICIENCY
ELECTRIC POTENTIAL
ELECTRONIC EQUIPMENT
EQUIPMENT
FABRICATION
GAS METAL-ARC WELDING
JOINING
OPERATION
POWER SUPPLIES
TEMPERATURE CONTROL
THERMAL EFFICIENCY
WELDING