Patent ID: 7241961
Filing Date: 2007-07-10
Classification: B23K

Abstract:
1. A TIG welding method comprising the steps of: providing a spark plug guide, said spark plug guide including a guide wall terminating in an end edge; providing a combustion chamber jacket of a gas turbine motor, said combustion chamber jacket including a jacket wall having an orifice, said orifice having an edge; providing a TIG welding electrode having a longitudinal axis; aligning the end edge of the spark plug guide to the edge of the orifice of the combustion chamber jacket to thereby define an intersection portion of the spark plug guide with the combustion chamber jacket, the intersection portion lying in a jointing plane; aligning the TIG welding electrode at an angle with respect to the guide wall smaller than 180° and with the longitudinal axis of the TIG welding electrode running through the intersection portion of the jointing plane; and moving the TIG welding electrode to weld the spark plug guide to the combustion chamber jacket without using any external filler.