Patent classifications
D03D41/004
Method of weaving textile articles, and device for carrying out said method
Disclosed is a method of manufacturing a textile article from a continuous thread-type element, a device for manufacturing said textile article, and a textile article obtained by such method.
WEAVING MULTILAYER PRODUCTS USING MULTIPLE WARP COLUMNS AND HEDDLE COLUMNS
An apparatus for weaving a multilayer product that has one or more warp columns for placing warp fibers and one or more heddle columns for heddles for lacing the warp fibers. The weaving apparatus has a numerical ratio of warp columns and heddle columns that is a fractional number. And a portion of the warp fibers are laceable through heddles on one or more heddle columns based on the fractional number. A method for weaving a multilayer product where adjacent warp fibers are segmented and laced through heddles on the heddle columns based on the fractional number.
METHOD OF FABRICATING A TEXTILE STRUCTURE OF VARYING THICKNESS
A method of fabricating a textile structure of varying thickness including using a loom to weave a fiber texture in the form of a strip extending lengthwise along a longitudinal axis and widthwise along an axis perpendicular to the longitudinal axis, and causing the texture to be wound under tension onto a mandrel. The texture includes a portion presenting extra thickness. During the winding of the texture, a spacer element is interposed between adjacent turns of the fiber texture onto the mandrel. Each spacer element extends in the width direction of the texture over a portion thereof situated outside the portion of extra thickness and presenting, over the portion of the texture situated outside the portion of extra thickness, a thickness that corresponds at least to the difference between thicknesses of the portion of extra thickness and of the portion of the texture situated outside the portion of extra thickness.
Systems and methods for continuous fabrication of woven composite materials
A machine and method are presented for continuously forming a woven composite with controllable internal fabric geometry. The machine may include one or more spools for dispensing one or more warp filaments, a roller assembly configured to receive a composite weave, a warp rack having warp heads for engaging the warp filaments and vertically adjusting position to dynamically create a weave pattern in response to the insertion of one or more weft filaments by a weft inserter stack.
Method and apparatus for weaving a three-dimensional fabric
A method and apparatus for weaving a three-dimensional fabric involves inserting simultaneously a parallel weft yarns into the sheds between multiple warp yarn layers and selectively inserting at least one group of binder yarns between parallel spaced warp yarns. The group of binder yarns are moved relative to the warp yarns between weft insertions. The yarns may be moved between more than two positions relative to the warp yarns during weaving of the fabric so as to insert binder yarns. In one embodiment the binder yarns are moved such that they extend in a direction that is not orthogonal to the warp yarns.
Fibrous structure having variable numbering yarns
A fiber structure for reinforcing a composite material part, the structure being woven as a single piece by multilayer weaving between a first plurality of layers of yarns extending in a first direction and a second plurality of layers of yarns extending in a second direction. The second plurality of layers of yarns includes at least one layer of variable-weight yarns, each variable-weight yarn including a separable assembly of individual yarns, each having a determined weight. The fiber structure includes at least one portion of reduced thickness in which the variable-weight yarn presents a weight that is less than the weight that it presents prior to the reduced thickness portion.
VARIABLE DIAMETER WOVEN MEDICAL TUBE TEXTILES AND METHOD OF MAKING SAME
A textile greige includes a plurality of woven medical tube textiles in a series that share a set of warp yarns and a first weft yarn. The medical tube textiles have different diameter segments such that less than all of the warp yarns are included in a small diameter segment of the medical tube textile. A diameter control weave of a second weft yarn is woven with segments of the warp yarns that are outside of the woven medical tube textiles. Later processing includes cutting the diameter control weave from the medical tube textile.
SYSTEMS AND METHODS FOR CONTINUOUS FABRICATION OF WOVEN COMPOSITE MATERIALS
A machine and method are presented for continuously forming a woven composite with controllable internal fabric geometry. The machine may include one or more spools for dispensing one or more warp filaments, a roller assembly configured to receive a composite weave, a warp rack having warp heads for engaging the warp filaments and vertically adjusting position to dynamically create a weave pattern in response to the insertion of one or more weft filaments by a weft inserter stack.
Control command generation methods and systems for three-dimensional surface weaving
The present application relates to control command generation methods and systems for three-dimensional surface weaving. The control command generation method comprises the steps of: rebuilding a desired three-dimensional object into a three-dimensional surface mesh; converting the three-dimensional surface mesh into readable weaving information; and generating control commands from the readable weaving information to instruct a three-dimensional surface weaving system. The control command generation method generally comprises a pipeline of software including the mesh processing, weaving map extraction and command generation. The control command generation method can enable three-dimensional surface weaving function.
COMPOSITE STRUCTURE FOR A TURBINE ENGINE
A method of manufacturing a composite component having an outer shell, an inner hub, and a plurality of struts connecting the outer shell and the inner hub. An initial outer shell hoop preform is woven and includes a plurality of bifurcated strut portions on an exterior side of the initial outer shell hoop preform. The initial outer shell hoop preform is turned inside-out to form a woven outer shell hoop preform so that the bifurcated strut portions are arranged on the interior side to extend inward. The woven outer shell hoop preform is installed on a mold tooling structure, along with an inner hub preform, and the bifurcated strut portions are connected to inner hub pi-joint members of the inner hub preform. A matrix material is injected into the mold tooling structure and a curing process is applied to the mold tooling structure to obtain the composite component.