I want to know if my lower is 6061 or 7075. Dont you? well heres the test. They say the truth upsets us the most. Enjoy the hostility in the comments. This has got to be one of the lamest videos on utube. But has brought out an interesting reaction.
6061 is a precipitation hardening aluminium alloy, containing magnesium and silicon as its major alloying elements. Originally called "Alloy 61S," it was developed in 1935. It has good mechanical properties and exhibits good weldability. It is one of the most common alloys of aluminium for general purpose use. It is commonly available in pre-tempered grades such as 6061-O (annealed) and tempered grades such as 6061-T6 (solutionized and artificially aged) and 6061-T651 (solutionized, stress-relieved stretched and artificially aged). This video is targeted to blind users. Attribution: Article text available under CC-BY-SA Creative Commons image source in video
Material testing of conventional materials used to fabricate roll cages/bars and ROPS for UTV's. Results indicate that an engineered composite matrix can outperform all conventional materials while reducing weight.
Metals Depot stocks hundreds of sizes and lengths that can be purchased online http://www.MetalsDepot.com - America's Metal Superstore. We sell the largest selection of 6061 aluminum beam sizes at wholesale prices. Any Quantity, Any Size, Delivered Anywhere!
website:http://www.steelsino.com Shanghai Bozhong Metal Group was founded in 2006, with 31 million registered fund, It is the leading integrated operator of modern service industry for specialty stainless steel.It is the core construction organization of the Shanghai steel modern service comprehensive pilot area, which was set up by nation’s commerce ministry and Shanghai government.
What is ALUMINIUM-LITHIUM ALLOY? What does ALUMINIUM-LITHIUM ALLOY mean? ALUMINIUM-LITHIUM ALLOY meaning- ALUMINIUM-LITHIUM ALLOY definition - ALUMINIUM-LITHIUM ALLOY explanation. Source: Wikipedia.org article, adapted under https://creativecommons.org/licenses/by-sa/3.0/ license. Aluminium–lithium alloys (Al-Li) are a series of alloys of aluminium and lithium, often also including copper and zirconium. Since lithium is the least dense elemental metal these alloys are significantly less dense than aluminium. Commercial Al–Li alloys contain up to 2.45% by weight of lithium. Alloying with lithium reduces structural mass by three effects: Displacement—a lithium atom is lighter than an aluminium atom; each lithium atom then displaces one aluminium atom from the crystal lattice while maintaining the lattice structure. Every 1% by weight of lithium added to aluminium reduces the density of the resulting alloy by 3% and increases the stiffness by 5%. This effect works up to the solubility limit of lithium in aluminium, which is 4.2%. Strain hardening—Introducing another type of atom into the crystal strains the lattice, which helps block dislocations. The resulting material is thus stronger, which allows less of it to be used. Precipitation hardening—When properly aged, lithium forms a metastable Al3Li phase (?') with a coherent crystal structure. These precipitates strengthen the metal by impeding dislocation motion during deformation. The precipitates are not stable however and care must be taken to prevent overaging with the formation of the stable AlLi (ß) phase. This also produces precipitate free zones (PFZs) typically at grain boundaries and can reduce the corrosion resistance of the alloy. The crystal structure for Al3Li and Al–Li, while based on the FCC crystal system, are very different. Al3Li shows almost the same size lattice structure as pure aluminium except lithium atoms are present in the corners of the unit cell. The Al3Li structure is known as the AuCu3, L12, or Pm3m and has a lattice parameter of 4.01 A. The Al–Li structure is known as the NaTl, B32, or Fd3m structure which is made of both lithium and aluminium assuming diamond structures and has a lattice parameter of 6.37 A. The interatomic spacing for AlLi (3.19 A) is smaller than either pure lithium or aluminium. Al–Li alloys are primarily of interest to the aerospace industry due to the weight advantage they provide. They are currently used in a few commercial jetliner airframes, the fuel and oxidizer tanks in the SpaceX Falcon 9 launch vehicle, and the AgustaWestland EH101 helicopter. The third and final version of the US Space Shuttle's external tank was principally made of Al–Li. In addition, Al–Li alloys are also used on both the Atlas V and Delta IV EELV rockets (citation needed), and before its cancellation were to be used by NASA for Constellation program, primarily, on its Ares I and Ares V rockets, as well as the Orion spacecraft. Al-Li alloys are generally joined by friction stir welding. Some Al–Li alloys, such as Weldalite 049, can be welded conventionally; however, this property comes at the price of density; Weldalite 049 has about the same density as 2024 aluminium and 5% higher elastic modulus. Key world producers of Aluminium-lithium alloy products are Alcoa, Constellium, Kamensk-Uralsky Metallurgical Works.
Sharing my opinions on the 2 most popular cycle frame materials
Data is available here (registration required for download): http://forums.mbarkey.com/index.php?topic=146.0
Stress stress diagram construction from test results, finding elastic modulus, yield strength, tensile strength, ductility, resilience and toughness as exactly as possible.