Die castings are made from the following non-ferrous metals: alloys based on aluminum, copper, zinc, magnesium, lead and tin . Advantages of Die Casting: Die casting is an efficient and economical process offering. a wider range of shapes and components than any other manufacturing process. Parts produced from die casting have a longer lifespan and can be designed to provide visual appeal to the surrounding room. Manufacturing designers can realize many advantages and business benefits by specifying die-cast parts. High-speed production – die casting delivers complex shapes within tighter tolerances than many other mass production processes. Little or no machining is required and thousands of identical castings can be produced before additional tooling is required. Dimensional accuracy and stability – die casting produces durable, dimensionally stable parts while maintaining close tolerances. They are also heat resistant. Strength and weight – die cast parts are stronger than plastic injection molded parts of the same dimensions. Thin-walled castings are stronger and lighter than possible with other casting methods. Another main advantage is that it does not consist of separate parts welded or fixed together, the strength is that of the alloy rather than the assembly process. Multiple Finishing Techniques: Die castings can be produced with smooth or textured surfaces and they are easily plated or finished. with minimal surface preparation. Simplified assembly – die castings provide integrated fasteners, such as bosses and studs. Holes can be cored and made to the size of the drill bits, or external threads can be cast. - inserts can be cast during casting - thinner walls can be cast with reference to other casting processes...... middle of paper... ...the molten metal then flows into a shot chamber through an inlet and a plunger/piston, powered by hydraulic pressure, forces the molten metal through a swan neck channel and into the die. Once the molten metal is injected into the die cavity, the piston remains in the same position, maintaining pressure while the casting solidifies. After solidification, the hydraulic system retracts the piston and the workpiece can be ejected by the clamping unit. Before injecting the molten metal, this unit closes and clamps the two halves of the die. When the die is attached to the die casting machine, each half is attached to large plates called a platen. The front of the diode is called the cover die and is mounted on a fixed plate. The other half of the die is called the lower die or ejector die and is mounted on the moving platen of the die casting machine. The picture below shows a hot chamber die casting machine.