Patent ID: 7896994
Filing Date: 2011-03-01
Classification: B29C,B29K,B29L,Y10T

Abstract:
1. A method for assembling at least two rigid thermoplastic material based composite parts including pre-impregnated superimposed layers and laid with a double radius, the method comprising: superposing the two parts so that they include at least one interface zone, wherein at least one of the two parts includes one or plural energy directors, protruding, situated in the interface zone; exciting at least one ultrasonic source brought into contact with one of the two parts, wherein the ultrasonic source compresses the two parts in a region of the interface zone located opposite the ultrasonic source; and displacing the ultrasonic source continuously along a surface of the one of the two parts so as to form at the interface zone a continuous welded joint, along a path of displacement of the ultrasonic source, by fusion of the thermoplastic material in the region positioned opposite the ultrasonic source.