Joining electrode of spark plug to precious metal section comprises joining precious metal section with electrode using heat from laser beam

摘要

Joining an electrode (22) of a spark plug to a precious metal section (31) comprises joining the precious metal section with the electrode using heat from a laser beam (41). During the introduction of heat the precious metal section lies in the region of a laser spot (70). An Independent claim is also included for a spark plug containing a precious metal section.