Carton and Wood
The advantages of die casting include excellent dimensional accuracy of the castings. This usually depends on the material being cast, with a typical value of 0.1 mm for the first 2.5 cm and an increase of 0.002 mm for every additional 1 cm. Its casting surface is smooth compared to other casting processes and has a fillet radius of about 1-2.5 microns. Castings with a wall thickness of about 0.75 mm can be made relative to sandbox or permanent mold casting. It can be directly cast internal structure, such as wire sets, heating elements, high-strength bearing surface. Other benefits include the ability to reduce or eliminate secondary machining, high production speeds, up to 415 MPa tensile strength castings, and the ability to cast high flow metals.
The biggest drawback of die-casting is the high cost. Casting equipment and molds, mold-related components are expensive compared to other casting methods. Therefore, it is more economical to produce large quantities of products when manufacturing die-castings. Other disadvantages include: This process is only suitable for higher mobility of metals, and the casting quality must be between 30 grams and 10 kilograms. In the usual die-casting, the last casting a total castings will have pores. Therefore, any heat treatment or welding can not be performed because the gas in the gap expands due to the heat, resulting in internal micro-defects and surface delamination.