Yarn adding and subtracting technology of 3D woven preform
To address the hole problem in the axial yam addition and subtraction process of 3D woven preforms,the axial yarn addition and subtraction process is studied,and a radially dispersed yarn adding and subtraction method is designed.The warp yarn addition and subtraction unit is 2 pieces,so that the warp addition and subtraction points are uniformly distributed along the axis of the cone and the thickness direction of the cross section,ultimately achieving a preform with no obvious hole defects,and this method is applicable to all 3D woven structures.
three-dimensional weavingpreformaxial dispersionyarn addition and subtractionprocess design
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