SHRINK-FIT SLEEVE ASSEMBLY FOR A DRILL BIT, INCLUDING NOZZLE ASSEMBLY AND METHOD THEREFOR

摘要

A second body interferingly disposed in a first body is provided in a compressively retained part assembly. In at least one embodiment a compressively retained part assembly comprising a bit body (10) includes at least one sleeve port (28) with a substantially tubular sleeve (32) disposed therein and interferingly engaged therewith. The sleeve port includes an internal surface of substantially circular cross-section, and the tubular sleeve includes an internal nozzle port (42) and an external surface of substantially circular cross-section. A lateral dimension of the external surface is equal to or greater than the first dimension at ambient temperature. A nozzle assembly and a method of manufacturing or retrofitting a drill bit are also disclosed.