Aluminum Alloys: Widely used due to their lightweight, corrosion resistance, and good mechanical properties.
Zinc Alloys: Known for their excellent fluidity, making them ideal for intricate designs.
Magnesium Alloys: Lightweight and strong, often used in aerospace and automotive industries.
Copper Alloys: Such as bronze and brass, valued for their durability and corrosion resistance.
Cast Iron: Occasionally used for specific applications requiring high strength and wear resistance.
Materials Not Suitable for Gravity Casting:
High-Melting-Point Metals: Such as titanium and tungsten, due to the difficulty in achieving the necessary temperatures.
Refractory Metals: Like molybdenum and niobium, which require specialized casting techniques.
Certain Plastics: Gravity casting is primarily for metals; plastics require different methods like injection molding.
Ceramics: Not suitable due to their brittleness and high melting points.
Composites: Typically not used in gravity casting as they require different manufacturing processes.
Summary: Gravity casting is best suited for metals with lower melting points and good fluidity, such as aluminum, zinc, and magnesium alloys. High-melting-point metals, refractory metals, plastics, ceramics, and composites are generally not suitable for this process.
