In combination with metals like silicon, manganese, aluminum and zinc, magnesium alloys have become a great asset to the die casting industry. Copper is used to increase corrosion resistance, tensile strength and the hardness of the alloy, providing it with superior mechanical properties. Magnesium is an important element in food items and in fertilizers as well for the development of the organisms while as Aluminium is a structural material used for engineering purposes. Your email address will not be published. It not only has the lowest density of all metal elements, making it the lightest, but it is also very strong, highly resistant to corrosion and easily machinable. When manufacturing hydraulic cylinders, or other pressure machinery, it also offers better pressure tightness compared to its counterparts. Zinc is one of the toughest alloys around, and it surpasses even aluminum in its ability withstand impact. There are now several aluminum alloys available to designers which are practical for a wide range of applications because of their varying physical and mechanical properties. It also offers better resistance to corrosion. In addition, some castings can be completely finished when they are ejected from the die, which can eliminate the need for machining and additional finishing work. These include the hot chamber, cold chamber and squeeze casting processes. The element has a specific gravity of 7.0, making it one of the heaviest materials commonly used in die casting. However, even with the many advantages of magnesium, aluminum remains a less expensive alternative for die casting. 2/3 Latent Heat/volume. With a combination of 8.5 percent silicon, and 3.5 percent copper, alloy 380 also offers a tensile strength of 324 megapascal, or 47 kilopounds per square inch. For designs that require a high yield strength and modulus of elasticity, zinc alloys are the best choice. Die cast aluminum parts can be found in everything from the components used to run your car to the electronics and power tools millions of Americans utilize every day. Water Heater Anode Rods: Aluminum vs Magnesium … Your email address will not be published. When compared to other aluminum alloys, alloy 360 offers greater strength during exposure to higher temperatures. To find out more about aluminum alloys and how they and other materials might work for your die casting project, contact Premier Die Casting online. Your design’s application, material density, tensile strength, yield strength, melting temperature and modulus of elasticity are all important factors in selecting the alloy best suited to your design needs. For applications that require enhanced strength when exposed to higher temperatures, alloys AS41B and AE42 are often the best option. Aluminum’s abundance percentage is more as it is found in more than 260 minerals. This allows magnesium alloy electronics bodies to be thinner than similar aluminum designs with the same … Brinell Hardness 65 60 80 80 Damping Capacity % 35 MPa 29 52 1.2 ... Vs Aluminum. Hardness of Aluminium Alloy vs Magnesium Alloy Brinell hardness of 6061 aluminium alloy depends greatly on the temper of the material, but for T6 temper it is approximately 95 MPa. Pure Aluminum always reacts with oxygen rapidly. Magnesium, an alternative to aluminum, is used as a primary alloy for an increasing number of laptop designs. Save my name, email, and website in this browser for the next time I comment. Magnesium’s melting temperature is lower than aluminum and will allow for a longer die life as well. Alloy AZ91D is about 9 percent aluminum and 1 percent zinc, and it is the most widely used available magnesium alloy. While zinc is ideal for casting components with thin walls, aluminum alloy 413 is useful for casting a variety of intricate parts. This process can be repeated again and again with incredible dimensional accuracy, making it one of the best ways for manufacturing a high volume of castings. Magnesium also takes less time to solidify after mold injection and is often considered to have better castability than aluminum. One of the most important choices to make when setting out to die cast a design is determining the type of alloy best suited to its specific application. Hot chamber die casting is ideal for metals with lower melting temperatures like zinc and magnesium, and cold chamber processes are used for metallic alloys like aluminum that have higher melting temperatures. Magnesium and aluminum are lightweight materials that offer excellent stability, but they have higher melting temperatures than zinc, which can contribute to higher casting costs. Conversely, magnesium has a quicker ejection time over aluminum castings. Aluminum, magnesium, zinc and zinc-aluminum are the four most commonly used alloys in die casting processes across North America. They’re generally quite straightforward to remove and replace.


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