| 摘要 |
<p>The invention relates to a method for assembling a piece of metal material (1) to a piece of composite material (2), with the assembling of the said pieces taking place by means of an attachment member (11), characterized in that the method comprises the following steps in which: - the two pieces are pre-drilled so as to form a gap (6) of diameter D1 in the metal piece (1) and in the piece of composite material (2), - an insert is applied (9) that is of variable diameter in the direction of the thickness of the pieces in said gap (6), said insert comprising a main hollow body (12) and at least one loop (10) intending to at least partially support against the outside surface (101) of the piece, said insert (9) intending to accommodate the attachment device (11), - residual compressive stresses are generated by radial expansion on the inner wall of the insert, by means of an expansion tool (7) that has an outside diameter engaging with the insert's inner diameter; these residual compressive stresses are generated in at least one area of the two pieces along the circumference of the insert (9), - the gap in the main body (12) of the insert is created such that the insert has a final inside diameter Dfinal that is substantially larger than the outer diameter of the attachment member (11) so as to allow some play between the insert's inside wall and the outside surface of the attachment member, and - the attachment member (11) is positioned inside the insert to keep the metal and composite pieces together.</p> |
