Patent ID: 8093531

Claim:
A method of manufacturing a seat rail for an aircraft passenger seat, the seat rail comprising a seat rail crest and a support structure, by joining a first region of the seat rail crest consisting of a titanium material and a second region of the support structure consisting of a first aluminium material for manufacturing the seat rail, the first region having a first area and the second region having a second area, wherein the first and second areas are to be connected with each other, wherein the method comprises: arranging the first area and the second area adjacent to one another; melting-on a second aluminium material at the first area by supplying heat to the second aluminium material only and by not supplying heat to the seat rail crest; activating a surface in the first area of the first region by supplying heat; and wherein the heat supply is such that the melted-on second aluminium material wets the activated titanium material and the substance-to-substance bond between the first region and the second region is formed by means of diffusion process which is initiated by a heat flux from the aluminium material toward the titanium material.