Tuesday, 1 August 2017

Autoclave or out-of-clave composites

Autoclave curing of structural composite components for aerospace applications is associated with some advantages that out-of-clave processing cannot deliver. This is why many people still prefer buying autoclave carbon fiber sheets and autoclave composites. However, the differences are minor as we shall see.

Nonautoclave curing has a knockdown factor for laminate properties such as the volume of fiber, and these are not realized with autoclave composite processing.

For instance, it is possible to achieve a 62 and 58 percent of fiber volumes with unidirectional fabrics and woven products respectively, while the out-of-autoclave process can achieve a 60 and 56 percent respectively. Thus there will be a 3 to 4 percent knockdown.

However, product quality should never be seen in the eyes of performance knockdowns; there is the overall weight, part count, manufacturability, processing time, surface quality and cost that must be included in this equation.

However, there has been a rise in autoclave component curing alternatives such as the VARTM. VARTM is a variety of resin infusion processes that are common in the marine, transportation and infrastructure markets.

The process involves laying up fiber reinforcements and core materials in one-sided mold and vacuum bagged.

Aero companies have been moving from autoclave composite processing, for instance using pre-preg materials to make aerospace grade parts. The resulting out-of-autoclave component curing turns out to satisfy the strict requirements for aerospace grade parts.

This has brought some doubt on the previous assumption that autoclave composite curing is superior. However, although some people claim that their out-of-autoclave products were much stronger, no difference exists when you test the weight, stiffness and safety history of these products and those produced in the autoclave composite processing.

In other words, for those needing out-of-autoclave and autoclave composites material, these two methods are just two different methods used to achieve similar results. What you should insist is a company that knows the processes very well and how to select the materials for each of the processes. However, you still can get products manufactured through autoclave processes.

This has been demonstrated in a number of tests even by renowned companies in the composite manufacturing area.

Wednesday, 31 May 2017

Popular Items Made of Carbon Fiber

Carbon fibres comprise of the carbon atoms and are 5-10 micrometers in diameter. Carbon fibre properties, such as superior tensile strength, high stiffness, low weight, superior chemical resistance, minimum thermal expansion and tolerance to high temperatures make these fibres useful in the motorsports, civil engineering, aerospace and the military industry.

Carbon Fiber Parts

Carbon fibres in combination with other materials, such as glass, plastic, graphite and epoxy resin, impart higher strength to the fibres and make them more resistant to heat so that they find wide application in industries like aerospace, construction etc.

A wide array of items are crafted from carbon fibre parts such as business cards, coasters, scuba diving equipment, steering wheel, battery boxes, air-box, diffuser, spoiler, FIA certified seats, carbon fibre sheets etc.

Here is a list of popular items made from carbon fibres.
  • Business Cards: You can make use of carbon fibres to make superior quality business cards. The manufacturing of these cards involves superior CNC cutting, vacuum infusion of epoxy resin as well as leading-edge overprinting technology. 
  • Coasters: Coasters are an essential table accessory that you use to rest your beverage glass on. You use them to protect your tabletop from water stain. They can be crafted from a wide array of materials, such as wood, plastic or even carbon fibres. Carbon fibre items are preferred for their light weight and low density. Coasters crafted from this material would be sturdy and of unmatched quality.
  • Scuba Diving Equipment: Carbon fibre is widely used for making scuba diving equipment, such as Kevlar/aramid fins, fins, diving backplates, adapter etc. Carbon fibre is chosen for making scuba diving equipment for its high strength and light weight. 

If you are interested in high-quality products crafted from carbon fibre, the best place to look for it is DexCraft. The Company is a leading manufacturer and supplier of superior quality carbon fibre products made from carbon fibres in combination with epoxy resins, glass, aramid filaments etc. Purchase unsurpassed quality of carbon fibre products from this company for its unrivaled quality, guarantee, high aesthetics, brilliant workmanship and superb after-sale customer service.