The present disclosure provides a method for assembling members, at least one of which is provided with a polymer member, comprising steps of: deforming at least one portion of the polymer member; putting the deformed portion of the polymer member into a second member; heating the deformed portion for engaging the portion with the second member. Through the steps described above, the portion of the polymer member may be in interference-fit engagement with the second member, based on which, adhesive is no longer necessary for improving reliabilities of engagement therebetween.

The present disclosure relates to a fluid connector having a sleeve-like connection piece with a connection-piece inner wall and an annular stop collar formed in the interior of the sleeve-like connection piece, said stop collar having an axially directed stop face, and a plastics tube which has a tube inner wall, a tube outer wall and a tube front face. The tube front face of the plastics tube comes into contact with the axially directed stop face. The tube outer wall of the plastics tube is connected to the connection-piece inner wall of the sleeve-like connection piece by means of a friction-welded connection.