Electric heating – Metal heating – By arc
Patent
1987-08-10
1989-04-25
Shaw, Clifford C.
Electric heating
Metal heating
By arc
21913021, 21913771, B23K 912
Patent
active
048250384
ABSTRACT:
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 said comparison to calculate corrections for the weld speed and filler wire feed rate, and applying corrections.
REFERENCES:
patent: 4375026 (1983-02-01), Kearney
patent: 4482798 (1984-11-01), Hurlebaus et al.
patent: 4594497 (1986-06-01), Takahashi et al.
patent: 4724302 (1988-02-01), Penney et al.
Smartt et al., "Gas Metal Arc Process Sensing and Control", Advances in Welding Science and Technology, ASM International, 1986.
Einerson Carolyn J.
Smartt Herschel B.
Watkins Arthur D.
Fisher Robert J.
Glenn Hugh W.
Hightower Judson R.
Shaw Clifford C.
The United States of America as represented by the United States
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