TUBE BODY INTERMEDIATE PIECE AND METHOD FOR MAKING A TUBE BODY

The tubular body intermediate piece addresses fiber alignment and cost issues by using phased fiber fixation and resin impregnation, reducing displacement and costs in tubular body manufacturing.

DE112020006109B4Active Publication Date: 2026-06-11ASTEMO LTD +1
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Patent Information

Authority / Receiving Office
DE · DE
Patent Type
Patents
Current Assignee / Owner
ASTEMO LTD
Filing Date
2020-03-19
Publication Date
2026-06-11

AI Technical Summary

⚠Technical Problem

Existing methods for manufacturing tubular bodies face challenges in aligning fiber materials along the axis of a mandrel while maintaining cost-effectiveness, particularly when the orientation angle of the fibers is small, leading to fiber displacement due to gravity.

⚗Method used

A tubular body intermediate piece is designed with multiple fiber layers stacked radially, each layer having a fiber body arranged axially and fixed by a first fixing element wound in a specific phase to prevent overlap, combined with a resin impregnation and heating process to form the tubular body.

🎯Benefits of technology

This design reduces fiber displacement and manufacturing costs by ensuring proper alignment and fixation of fibers even at small orientation angles, enhancing the structural integrity and efficiency of the tubular body production process.

✦ Generated by Eureka AI based on patent content.

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Abstract

Pipe body intermediate piece with a plurality of fiber layers (13a, 14a) arranged such that they are stacked in a radial direction of a mandrel (1), wherein the plurality of fiber layers (13a, 14a) each has the following: a fibrous body which is arranged with respect to an outer circumferential surface of the mandrel (1) such that it extends in an axial direction of the mandrel (1); and a first fixing element (13b, 14b) which is wound with respect to the outer circumferential surface of the mandrel (1) such that the first fixing element (13b, 14b) is wound with one or more turns in a circumferential direction along the axial direction of the mandrel (1) over the fiber body, wherein the first fixing element (13b) of a lower one from the plurality of fiber layers (13a) and the fiber body of an upper one from the plurality of fiber layers (14a) located on the lower one are stacked at least in the radial direction, and wherein the first fixing elements (13b, 14b) of the plurality of fiber layers (13a, 14a) are arranged in different phases in the axial direction of the mandrel (1) so that they do not overlap each other in the radial direction of the mandrel (1).
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