Rectilinear Winding of Composite Inserts for Unidirectional Load Transmission
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Solution Overview
Problem
Existing manufacturing techniques for mechanical components with ceramic fibers in a metal matrix are limited in producing components that effectively transmit tensile and compressive loads in one direction, particularly for oblong shapes like rods, as they are primarily suited for circular components.
Innovation Solution
A method involving winding a bonded lap or bundle of coated filaments about a component of revolution in a rectilinear direction, using a specialized winding device with a hollow, oblong mandrel and end plates to create a composite insert capable of transmitting loads in one direction, and subsequent hot isostatic compaction and machining to form a mechanical component like a rod.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If winding is done in a circular direction around a component of revolution, then circular components such as shafts, cylinders, casings or disks can be produced, but oblong components like rods that require unidirectional load transmission cannot be effectively manufactured
Solution Approach 1:
The invention transitions from traditional circular winding paths to a rectilinear winding path that extends along the longitudinal axis of the mandrel. This dimensional change in the winding direction enables the production of oblong components with fibers oriented primarily in the longitudinal direction, optimizing load transmission capability for rod-like structures while maintaining the composite manufacturing process
2Object-affected harmful factors
If ceramic fibers are used without metal reinforcement, then erosion resistance is improved, but tensile and compressive strength are insufficient
Solution Approach 1:
The invention uses metal matrix composite materials where ceramic fibers are embedded in a metal matrix. The ceramic fibers provide erosion resistance while the metal matrix provides tensile and compressive strength, creating a composite material that combines the beneficial properties of both materials to achieve superior overall performance
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The method enables the production of mechanical components, such as rods, that efficiently transmit tensile and compressive loads in one direction, suitable for aeronautical applications like undercarriages and turbomachines, with improved strength and reduced mass.
Implementation Method 1
a step of winding a bonded lap or bundle of coated filaments about a component of revolution
Implementation Method 2
subsequent hot isostatic compaction and machining to form a mechanical component
Data Source
AI summary
A method of manufacturing a mechanical component, a mechanical component thus obtained, and a winding device designed for implementing the method of manufacture. The mechanical component includes at least one insert made of metal matrix composite, within which matrix ceramic fibers extend, the composite insert being obtained from a plurality of coated filaments each including a ceramic fiber coated with a metal sheath, the method including manufacturing at least one insert by winding a bonded lap or bundle of coated filaments about a component of revolution. At least some of the winding is performed in a rectilinear direction.