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Lecture

Advanced Composite Manufacturing: Processing and Matrices

In course

MICRO-631: Selected topics in advanced manufacturing

The course aims to provide a comprehensive overview of ongoing advanced manufacturing research topics and an opportunity for students to investigate current research trends. ...

Description

This lecture covers the processing of composite materials, focusing on the role of matrices in thermoplastic and thermoset polymers. It discusses the challenges in composite processing, the types of polymer matrices, and practical issues in thermoset and thermoplastic processing. Various processing methods such as injection molding, extrusion, 3D printing, and pultrusion are explained, along with their advantages and drawbacks. The lecture also delves into composite processing techniques like wet lay-up, vacuum molding, autoclave molding, and resin infusion. It concludes with a discussion on pultrusion, filament winding, tape placement, and thermoforming, highlighting their applications and limitations.

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Ontological neighbourhood

Chemistry

Organic chemistry: Polymer chemistry

Related concepts (32)

Composite material

A composite material (also called a composition material or shortened to composite, which is the common name) is a material which is produced from two or more constituent materials. These constituent materials have notably dissimilar chemical or physical properties and are merged to create a material with properties unlike the individual elements. Within the finished structure, the individual elements remain separate and distinct, distinguishing composites from mixtures and solid solutions.

Thermoset polymer matrix

A thermoset polymer matrix is a synthetic polymer reinforcement where polymers act as binder or matrix to secure in place incorporated particulates, fibres or other reinforcements. They were first developed for structural applications, such as glass-reinforced plastic radar domes on aircraft and graphite-epoxy payload bay doors on the Space Shuttle. They were first used after World War II, and continuing research has led to an increased range of thermoset resins, polymers or plastics, as well as engineering grade thermoplastics.

Molding (process)

Molding (American English) or moulding (British and Commonwealth English; see spelling differences) is the process of manufacturing by shaping liquid or pliable raw material using a rigid frame called a mold or matrix. This itself may have been made using a pattern or model of the final object. A mold or mould is a hollowed-out block that is filled with a liquid or pliable material such as plastic, glass, metal, or ceramic raw material. The liquid hardens or sets inside the mold, adopting its shape.

Injection moulding

Injection moulding (U.S. spelling: injection molding) is a manufacturing process for producing parts by injecting molten material into a mould, or mold. Injection moulding can be performed with a host of materials mainly including metals (for which the process is called die-casting), glasses, elastomers, confections, and most commonly thermoplastic and thermosetting polymers. Material for the part is fed into a heated barrel, mixed (using a helical screw), and injected into a mould cavity, where it cools and hardens to the configuration of the cavity.

Polymer matrix composite

In materials science, a polymer matrix composite (PMC) is a composite material composed of a variety of short or continuous fibers bound together by a matrix of organic polymers. PMCs are designed to transfer loads between fibers of a matrix. Some of the advantages with PMCs include their light weight, high resistance to abrasion and corrosion, and high stiffness and strength along the direction of their reinforcements. The function of the matrix in PMCs is to bond the fibers together and transfer loads between them.

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