Patent ID: 7930825

Claim:
A method for forming a fuel injector having a fuel inlet, and fuel outlet and a fuel passageway extending from the fuel inlet to the fuel outlet along a longitudinal axis, the method comprising the steps of: constructing a first fuel injector component comprising a radially outwardly facing annular surface; constructing a second fuel injector component comprising a radially inwardly facing annular surface; assembling the first and second components by press-fitting the first component into the second component with the outwardly facing annular surface abutting the inwardly facing annular surface; rotating the assembled first and second components about a longitudinal axis; first welding a portion of the annular surfaces together to form a first weld bead defining a continuous bead along an arc corresponding to approximately 325 degrees of rotation about the longitudinal axis so as to leave a radial void in the first weld bead so that trapped gasses can be relieved through the void; further rotating the assembled first and second components about the longitudinal axis; and second welding another portion of the annular surfaces together to form a second weld bead along an arc corresponding to the radial void, thereby forming a hermetic annular weld between the first and second components.