Methods for producing even wall down-hole power sections

Details Methods for producing even wall down-hole power sections Methods for producing even wall down-hole power sections

B - Operations, Transporting

22

D

B22D 13/00 (2006.01) B22D 13/10 (2006.01) C23C 4/06 (2006.01) C23C 4/12 (2006.01)

Patent

CA 2552017

Embodiments of the present invention provide methods for manufacturing an even-wall rotor or stator that do not suffer from drawbacks of the prior art. Even-wall rotors or stators produced according to those methods are also provided. In one embodiment, a method for manufacturing a rotor or stator for use in a mud motor is provided. The method includes providing a vacuum chamber; providing a metal electrode at least partially disposed in the vacuum chamber; providing a mold disposed in the vacuum chamber; and melting a portion of the electrode with a direct current arc, the molten metal flowing into the mold ring.

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