Process for producing a multi-directional textile preform, device for practicing it and preform thus obtained

摘要: The object of the invention is a process for production multi-directional textile preform, in which there deposited on substrate suitable stitching (M) first layer sections thread, then, if desired, one or several other layers different directions, so as to produce sequence depositions, carrying out desired sequences deposition layers, each section thread ( 3 1 , 2 ) being, at end, fixed by without knotting into said with help needle 11, 12 ), characterized that two ends carried independently needles using separate threads (P l P from end upon arrival head height its point turning back, embedded serving hooking pin during following section, remaining least until embedded. Use composite pieces FIG. e