| abstract |
The present invention relates to a method of forming a permanent bond between two parts of fibrous material contained in a thermosetting resin matrix. The method comprises the steps of superposing two parts, ultrasonically welding the superimposed parts to form a permanent joint between the two parts, and in the region of the permanent joint It is characterized in that there is no significant change in the subambient Tg of the fibrous material contained in the curable resin matrix. The invention also relates to the fibrous material part contained in the thermosetting resin matrix permanently bonded by the method according to the invention. |