Magnesium is very well known. It is a very strong and lightweight. Many use it for productions. It is a more affordable option. But what many do not know is that it poses a problem, for fastening and joining. Many people are not aware of that. Therefore, many are starting to use aluminum, plastics, and composites. Aluminum is the ninth most abundant element in the universe. Although magnesium is as strong as steel, It is 33% lighter than aluminum. 60% lighter than titanium, and 75% lighter than steel.
Now magnesium is used in the production of a lot of things. It has a steadily growing rate of 3% annually. It is primarily driven by the automotive industry, based on research the average light vehicle contains around 10 pounds of it. Magnesium is mainly used to save weight and for lower prices. Other than automaker parts it is also used for aerospace aviation industry. For example, it is used for the thrust reverses of airlines and the transmission casings of helicopter and missiles. They use it for the same purposes as the automotive application. They are used for strength, durability, and light weight of magnesium. Magnesium parts are not only found in auto parts and aerospace but also in sporting good materials and household goods.
Terry Tripp, an engineering product specialize at semblex corm mentioned that
“We’re seeing more and more applications for fastening magnesium,”
Beyond all these benefits that magnesium has, it is challenging for materials such as thermal, chemical and mechanical joining methods. Therefore, it is important for companies and their engineers to come up with different ways to use magnesium to obtain its benefits while not affecting and causing negative reactions. Some examples might be that they can design magnesium parts to provide more thread engagement than comparable Steele parts. Also since magnesium is brittle, thread cutting screws should not be an option. Logan mentioned Logan.
“From a corrosion standpoint, certain combinations (for example, magnesium to coated aluminum) are considered more viable than others due primarily to electro galvanic compatibility between the materials.”