1. Introduction Carbon nanotubes (CNTs) have widely been used as reinforcement in polymer matrix–based composites. This is because of their unique properties such as mechanical, thermal, and electrical properties. In addition, carbon nanotubes have high aspect ratios and more surface area per gram which make them suitable for their use as multi-functional reinforcement materials in polymer matrixes , . The performance of a composite material system depends mainly on the interfacial properties of the reinforcement and the matrix material .
While carbon fibre composites have a high strength to weight ratio, they are highly susceptible to high loads over a small area, such as an impact. Once the integrity of the composite is compromised, the matrix essentially starts to crumble and must be repaired or replaced. Above are two photos that show the construction of Carbon fiber. On the left are cross-linking resins, and on the right are Carbon fiber sheets layered on top of oneanother. Right now the layering is pretty basic, however, there are rumors about other lightweight self-healing materials such as kevlar and polymer.
3D Printing is a "manufacturing process that creates a physical object from a digital design". There are endless possibilities to what you can print from a 3D Printer, you can print anything from prosthetics to chocolate to cars. It is helping to make great advances in the medical field by printing prosthetics as well as certain implants; they are doctors are working to become able to print a functioning heart. They have made several 3D Printed hearts, but none of which are able to function. The history of 3D printing is fairly short due to how modern it is.
Using the integration of recent computer technologies the development rate of plastic is greatly elevated today. Unlike the days of old only if only fresh materials were molded to helpful items, today with environment awareness increasing, plastic moulding focuses on using recycled materials. Furthermore, the developments in moulding technologies have managed to get easy to manufacture items in almost any complicated shapes. The Programs Of Contemporary Plastic Moulding The programs of plastic injection moulding are virtually limitless. Beginning from simple plastic carry bags to complicated lifesaving products - every plastic product manufactured today are through plastic injection moulding.
But not only organs, but skin, bone, cartilage, blood vessels, surgical tools and even hearts and stem cells can just as well be made by these magnificent machines. As 3d printing is "additive manufacturing", it's products are printed from the ground up. So there's no waste of materials as opposed to other forms of production. Another buff of having a 3d printer at-hand would use of it to design and construct spare parts for everyday items. Say, your favorite coffee mug's handle breaks; with the right measurements you can have a replacement part designed and printed in no time instead of buying yourself a whole new mug.
Battery, engine, transmission, and steel can be recycled and resell it again . Manufacturing techniques The Process of molding composite materials divided into two important parts, which are: simple process and advanced process. However, an example of simple process is hand lay while sheet molding compound (SMC) is a good example of advanced process. Both processes are useful depending on how will be used in different types of applications. The selection of the process is extremely important to reach the necessary technical performance in industrial cost.
Industry has expressed very strong interest to further develop current prototyping techniques or create new ones that are capable of directly producing metallic or ceramic parts. The evolution from polymers to metals and ceramics is just starting to take place. There are many more difficulties associated with producing a structurally sound, dimensionally accurate metallic part rather than simply a real three-dimensional model for visualization purposes. But if achieved, metallic parts will offer several advantages over plastic parts such as high strength, greater impact resistance and toughness and greater durability. In addition, in situ testing of the formed prototype will be possible under practical working
Dry-dot-printing – The resin is printed on to the fabric through engraved roller having micro grooves to retain the resin. 3. Paste coated – the net like structure is formed by heating the resin and then it is laminated on the fabric by applying heat and pressure. 8.1.4 Fusing machinery and equipment In spite of what kind of fusible and equipments are used, fusing is controlled by four processing elements, such as, pressure, temperature, time and cooling and these have to be precisely combined in order to achieve the desired results. 1.