Method for manufacturing a rotary rock bit

Details Method for manufacturing a rotary rock bit Method for manufacturing a rotary rock bit

1987-04-20

1988-05-03

Godici, Nicholas P.

Metal fusion bonding

Process

With shaping

228182, 21912421, 219 69M, 76108A, 901 42, B23K 3110, B23K 3102, B23K 3300

Patent

active

047414715

ABSTRACT:
A method and device are shown for manufacturing rotary rock bits. The method eliminates repositioning errors in robotic welding operations by combining a cutting torch and a welding torch on a single, rotatable bracket whereby a bit can be welded at a single station without multiple rechuckings. The quality of the weld tie-in between any two intersecting seams (radial-radial or radial-axial) results where the groove for the latter seam in each pair is cut after the first seam in the pair has been welded.

REFERENCES:
patent: 3907191 (1975-09-01), Lichte
patent: 4229638 (1980-10-01), Lichte
patent: 4256518 (1981-03-01), Bolton et al.
Metals Handbook, Ninth Edition, vol. 6, pp. 66, 86, 87, copyright 1983.

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