Unitized rotary rock bit

Details Unitized rotary rock bit Unitized rotary rock bit

E - Fixed Constructions

21

B

76/21, 255/72

E21B 10/00 (2006.01) E21B 10/20 (2006.01)

Patent

CA 1048488

Abstract of the Disclosure A rotary rock bit is formed from at least two individual segments. The individual segments are positioned together and aligned in the proper position for the final assembled bit. The seams between the individual segments are in the form of square- butt type joints and the adjoining segments have surface areas that, are in abutting relationship to each other. A beam of energy such as an electron beam or a laser beam is directed into the seams. Relative movement between the beam and segments of the bit causes the beam to traverse the seams and join said individual segments together throughout substantially all of said abutting surface areas. -1a-

210044

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