Aluminum Investment Castings
There are so many ways to cast metals including die casting and permanent mold casting, and some methods are centuries old. To cast a metal simply means that you have a mold or cast into which you place heated or liquid metal and then press the metal into the mold or die so that it takes the shape you need it to. Aluminum is a popular metal used in the casting process because aluminum is a lightweight metal that is also very strong and relatively inexpensive.
A unique method of casting this kind of metal is called aluminum investment casting. In this process the mold into which the metal is placed is destroyed in the process of heating or casting, and usually it becomes part of the finished metal product. Not every mold becomes completely invested in the final product as the name implies, but investment casting does require by its nature that the mold be destroyed after the process is finished. Because the mold itself is created in such a way that some of it is bonded with the metal, the intent that the mold cannot and will not be used more than once.
Investment casting is a useful process because it allows metal workers to create complexly or intricately designed metals that other casting processes would not be able to. We see aluminum investment casting byproducts in so many objects around the home and in various industries that we may not recognize them. They are present everywhere from the aerospace industry to complex piping elements. But what is so great about aluminum investment casting is that you can create pieces of aluminum that are extremely thin, yet still very strong. This is a highly desirable attribute in businesses where the weight and the strength of material are crucial factors in constructing machinery.