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FAQ

A cube of solid aluminum has a volume of 1.00 m3 at 20°C. What temperature change is required to produce a 130 cm3 increase in the volume of the cube?

The linear expansivity of aluminum is 23 x10^-6 /K. Bulk expansivity is 3 x 23 x10^-6 / k For 130 [cm^3] the temperature required is 130 [cm] ^3/ 3 x 23 x10^-6 = 0.00013/[3 x 23 x10^-6] = 1.88 K ========================= If each side of the cube of side 1m expands by e, then its new volume = [1+e]^3 = 1 + 3e + 3e^2 +e^3. Neglecting high powers of e as negligible, the increase in volume is 3e. But e = 23 x10^-6 x rise in temperature 3e = 3*23 x10^-6 x rise in temperature. Given 3e = 0.00013 0.00013= 3*23 x10^-6 x rise in temperature Rise in temperature = 0.00013 / 3*23 x10^-6 = 1.88 K

There are several different edge profiles available for aluminum coils, each serving a specific purpose or aesthetic preference. Some of the most common edge profiles include: 1. Square Edge: This is the most basic and straightforward edge profile, with sharp corners and a flat surface. It is often used for industrial applications where functionality is prioritized over aesthetics. 2. Round Edge: The round edge profile features a curved surface that eliminates sharp corners. This profile is commonly used in applications where safety is a concern, such as automotive parts or children's playground equipment. 3. Beveled Edge: The beveled edge profile is characterized by a slanted or angled surface. It is often chosen for architectural purposes, as it adds a sleek and modern look to aluminum coils. Additionally, the beveled edge helps to minimize the risk of sharp edges and potential injuries. 4. Full Radius Edge: This edge profile features a smooth, rounded surface that extends along the entire length of the coil. Full radius edges are often preferred for applications where the coil will come into contact with other materials, as they reduce the risk of damage or scratching. 5. Hemmed Edge: A hemmed edge is created by folding the edge of the coil back onto itself, resulting in a double layer of metal. This profile is commonly used in applications where a strong and durable edge is required, such as in the manufacturing of appliances or cabinets. 6. Tapered Edge: The tapered edge profile gradually narrows the width of the coil towards the edge, creating a tapered or sloping appearance. This profile is often chosen for architectural or decorative purposes, as it adds visual interest and can make a space appear more dynamic. It is important to note that the availability of these edge profiles may vary depending on the manufacturer and the intended application of the aluminum coil. Therefore, it is recommended to consult with the supplier or manufacturer to determine the specific edge profiles that are available for a particular coil.

Yes, aluminum coils can be used in the manufacturing of appliances. Aluminum coils offer several advantages such as being lightweight, corrosion-resistant, and having good thermal conductivity, making them suitable for various appliance applications including refrigerators, air conditioners, and heating systems.

helicopters rotorblades are made of honeycombed aluminum to give them strength, so isn't it a good idea for automakers to use the same technology to strengthen the frames of autos to make them lesslikely to cave in during a side impact auto accident?

Sure you could do this, but the reason it won't happen is cost. If your target is today's strength car, you could make the car lighter. If your target is today's weight car, you could make the car stronger. Honeycombed aluminum is not so much a strong material as a strong material at a given weight. For just a little more weight though, other less exotically manufactured materials have even greater strength, so I doubt that this will be seen in cars. Airplanes have an entirely different cost function, and weight is everything so they can afford these materials.

Outdoor or exposed applications can utilize aluminum coils. The reason behind this lies in aluminum's remarkable resistance to corrosion, rendering it appropriate for outdoor purposes. It develops a safeguarding oxide layer on the surface, preventing further oxidation. Furthermore, aluminum is renowned for its lightweight nature, durability, and impressive strength-to-weight ratio, making it a favored option for outdoor tasks where weight and durability are crucial aspects. Aluminum coils frequently find their use in outdoor applications like HVAC systems, roofing, gutters, and siding, as they possess the ability to withstand exposure to diverse weather conditions without compromising their performance or aesthetic appeal.

Improved building aesthetics can be achieved through the use of aluminum coils in several ways. To begin with, sleek and modern exterior finishes can be created for buildings using aluminum coils. Various finishes, such as brushed, anodized, or painted, can be applied to the coils, providing a wide range of design possibilities. Architects and designers can thus achieve their desired aesthetic vision for the building with the help of this versatility in finishes. Furthermore, aluminum coils offer the advantage of being easily shaped and formed into different profiles, resulting in a unique and customized look for buildings. By bending, cutting, or perforating the coils, intricate patterns or architectural details can be created, enhancing the overall aesthetics of the structure. This flexibility in shaping allows for the creation of visually appealing designs that can make a building stand out. Moreover, aluminum coils possess the qualities of being lightweight yet durable, making them an ideal choice for cladding systems. Using aluminum coils as exterior cladding can give buildings a modern and clean appearance. The lightweight nature of the coils also makes installation easier and more cost-effective, ultimately contributing to improved building aesthetics. Additionally, the use of aluminum coils aligns with sustainable building practices and environmentally friendly designs. Aluminum is a highly recyclable material, and buildings that incorporate aluminum coils can be seen as more visually appealing due to their eco-friendly attributes. This reflects the values of the project and its occupants. In conclusion, aluminum coils contribute to improved building aesthetics through their wide range of finishes, their ability to be shaped and customized, their lightweight and durable nature for cladding, and their promotion of sustainable design practices.

Can you create a tank, AFV, IFV etc. from aluminium or is this just a stupid idea that would kill everyone inside?

Aluminium Armor

Yes, aluminum coils are suitable for construction applications. They are lightweight, durable, and corrosion-resistant, making them an ideal choice for various construction purposes such as roofing, siding, and insulation. Additionally, aluminum coils can be easily formed and shaped, providing flexibility in design and installation.