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7075 Aluminum

7075 Aluminum

michelewestcott
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7075 Aluminum

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  1. 7075 Aluminum Byhttp://7075aluminum.org/

  2. Lithium is the least dense elemental metal. When combined with aluminum to produce Al-Li alloys every 1% increase in lithium to the mix results in a 3% reduction in the density and therefore the weight of the resulting alloy the modulus also increases by approximately 5%.

  3. In addition to reduced weight Al-Li alloys also have increased stiffness, high elastic modulus, fatigue and cryogenic durability(the 3rd generation of Space Shuttle external fuel tanks are made of Al-Li alloy), however the increased stiffness of Al-Li alloys means reduced ductility and fracture resistance in the short transverse direction. Al-Li alloys have a high resistance to fatigue crack growth because of the jagged path cracks must follow through the alloy.

  4. Some Al-Li alloys that are commercially available are: Alloy 2090 developed as a replacement for 7075-T6, offering 8% lower density and 10% higher stiffness than the conventional alloy that is used heavily in aircraft structures. The 2090 alloy also has a higher corrosion resistance in salt-spray (marine) environment than 7075-T6.

  5. Alloy 2091 developed as a replacement for conventional aluminum alloy 2024-T3, offering 8% lower density and 7% higher modulus as well as superior damage tolerance. Alloy 8090 developed as a replacement for some of the most long serving of the commercial aluminum alloys, namely 2014 and 2024.

  6. Alloy 8090 has 10% lower density and 11% higher modulus than these conventional counterparts, and 8090 exhibits superior mechanical properties at cryogenic temperatures. Weldalite 049 is a weldable Al-Li alloy designed to replace 2219 and 2014 in spacecraft launch systems. Weldalite 049 has a density of 2.7 g/cm3 has about 5% higher modulus than 2024, and tensile strengths of forged parts in excess of 700 MPa have been reported.

  7. Al-Li is typically 3-5 times more expensive than other aluminum alloys due to the high cost of Lithium as well as high processing and handling costs. Al-Li alloys are typically used in the construction of aircraft wing edges and access covers.

  8. Military and space applications are also common as main wing boxes and main fuselage. Al-Li alloys should not be combined with some other aluminum alloys as there is a potential for explosive reactions.

  9. Long gone are the days of setting up giant tents that all soldiers sleep together in. Marine and Army soldiers of today get high tech 2 man tents that are easy to setup and transport. With today's military men constantly on the move, they need light weight and highly portable tents.

  10. A military combat II dome tent fills the need for the average camper and hunter to sleep securely. Styled after those used by the US Marines, this tent is light weight, setups in a flash, and take down is just as simple.

  11. Heavy duty fabrics that are long lasting are required for combat operations, this is built in with the Catoma tent. The Denier polyester fabric is a high count material with a 2000 mm water repellent rating. Totally UV resistant for long life.

  12. Every camper knows what a chore it can be getting into and out of some tents. Our combat personal know this too. Having to move large gear securely and easily through any opening. Catoma offers a extra large door in the front vertical wall, this upright wall also helps to provide extra room inside the tent. Both front and rear doors are fully screened for ventilation and bug protection.

  13. As with the military style tent, the high quality 7075 aluminum poles provide the strength and durability that is needed by the most demanding users. The tent even has fully taped seams, just like the military version, for added protection from all types of weather.

  14. For added convenience and shelter, a reversible fly that is attached with adjustable quick release buckles is included. This fly is green on one side for blending into wooded areas and tan on the other for desert or light regions. The fly can even be used separately from the tent as a canopy shade.

  15. A few other features of this tent include, compression bag for tent/fly storage, bag for aluminum poles and aluminum stakes storage, large 38 square feet interior footprint gives ample space for two adults, storm flaps on all openings loft to suspend your gear for added interior room and convenience pockets. Fly extends over front wall to create 20 square feet vestibule if additional storage area is needed.

  16. If you have an urge to camp military style, or need a light weight tent for hunting, you have to look no further the Catoma military combat style tent.

  17. 7075 Aluminum For more information, please visit http://7075aluminum.org/

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