CPC C23C 26/00 (2013.01) [C21D 9/22 (2013.01); C22F 1/10 (2013.01); C22F 1/18 (2013.01); E21B 7/046 (2013.01); E21B 10/46 (2013.01)] | 27 Claims |
1. A method for hardening a horizontal directional drilling (HDD) component, comprising:
hard facing the horizontal directional drilling (HDD) component at a region thereof, wherein the horizontal directional drilling (HDD) component comprises a boring bit, wherein the boring bit comprises a mounting base portion and an engagement bit portion extending axially forward from the mounting base portion, wherein a front thrust surface is along the engagement bit portion at an axially front-most location facing away from the mounting base portion, and wherein said hard facing covers at least 90% of the front thrust surface; and then subsequently
heat treating the hard faced horizontal directional drilling (HDD) component.
|