Method for making rock bits

Details Method for making rock bits Method for making rock bits

1977-07-22

1979-05-22

Truhe, J. V.

Electric heating

Metal heating

By arc

219137R, 219118, 228182, 175375, 228263, B23K 1500

Patent

active

041561236

ABSTRACT:
Segments of a rock bit are secured together by electron-beam welding. The segments are slightly spaced apart prior to welding by a thin shim of alloying metal such as titanium which improves ductility of the weld and is a strong carbide-former during welding. The shim is positioned between adjacent segments in the region of the crown or dome of the bit. The resulting welded interface is a fine-grain stress-relieved structure with good ductility and resistance to cracking.

REFERENCES:
patent: 1589017 (1926-06-01), Lincoln
patent: 2807444 (1957-09-01), Reifschneider
patent: 3288981 (1966-11-01), Mabry et al.
patent: 3584187 (1971-06-01), Majetich
patent: 3907191 (1975-09-01), Lichte
Metals Handbook 1971 -- Welding and Brazing, pp. 519, 564, vol. 6.
Welding Handbook, pp. 47.39-47.43, 1/1971, 6th Ed. Section 3A.

Affiliated with

Also associated with

Rating

Method for making rock bits does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for making rock bits, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for making rock bits will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1041982