Aluminum castings play an important role in products for a wide range of industries. These include aerospace, military, electronics, medical and dental instruments and food and dairy applications, to name just a few.
It is a material well-known for its high strength-to-weight ratio, which makes aluminum an ideal material for countless casting applications. Heat treating can be employed to give it greater strength, ductility, corrosion resistance, and machinability.
Aluminum Grades Used in Investment Casting
Aluminum Alloy 319 -- 319 contains around 6% Si and 3.5% copper and is often used for general low cost uses because of its excellent casting and machining characteristics.