Electric heating – Metal heating – By arc
Patent
1975-05-05
1977-10-18
Truhe, J. V.
Electric heating
Metal heating
By arc
175375, 219121LM, 76108R, 76108A, 228212, 228186, 269 63, 279 5, B23K 900
Patent
active
040547728
ABSTRACT:
A positioning system is provided for clamping individual segments of a rock bit together in position for an assembled bit and aligning the seams between the segments with a beam of energy from a welding gun. The segments are moved until the plane of a first seam between segments is coincident with the plane of the beam. Relative movement between the segments and the beam causes the beam to traverse the first seam throughout the plane of the seam and fuse the segments together. The segments are indexed by the fixture to bring the second seam into a position coincident with the plane of the beam. Relative movement between the segments and the beam causes the beam to traverse the second seam throughout the plane of the seam and fuse the segments together. The steps are repeated until the bit is completed.
REFERENCES:
patent: 2225273 (1940-12-01), Jacobs
patent: 2831661 (1958-04-01), Brown
patent: 2901223 (1959-08-01), Scott
patent: 2925659 (1960-02-01), Lovely
patent: 3148873 (1964-09-01), Chandler
patent: 3440392 (1969-04-01), Erlandson et al.
patent: 3535487 (1970-10-01), Hinrichs et al.
patent: 3592995 (1971-07-01), Hinrichs
patent: 3742365 (1973-06-01), Sciaky
patent: 3850256 (1974-11-01), McQueen
Dresser Industries Inc.
Paschall Mark H.
Scott Eddie E.
Truhe J. V.
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