Electric heating – Metal heating – By arc
Patent
1984-03-26
1985-12-31
Shaw, Clifford C.
Electric heating
Metal heating
By arc
2940201, 2940221, 148 4, 219121EG, 219121EV, 219121LF, 219121LW, 219121LM, B23K 1500
Patent
active
045623325
ABSTRACT:
A method for healing surface cracks 10, especially in metals, by scanning a high-energy, diffused, pulsed electron-beam past a crack 10 in a slowly moving specimen object 12. The crack 10 moves laterally with respect to the beam so that the beam pattern 14 is a sawtooth pattern comprising a series of overlapping circles 22, each comprising one pulse of diffused energy.
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patent: 3848104 (1974-11-01), Locke
patent: 4050133 (1977-09-01), Cretella et al.
patent: 4125417 (1978-11-01), Antony
patent: 4250610 (1981-02-01), Wilbers et al.
patent: 4382186 (1983-05-01), Denholm et al.
patent: 4486240 (1984-12-01), Sciaky
Lewis Jack R.
Moss Charles M.
Walter Robert J.
Field Harry B.
Hamann H. Fredrick
Keve Alfred S.
Rockwell International Corporation
Shaw Clifford C.
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