Casting can be simply defined as a method of shaping any material generally metal into desired shapes. This process is performed by melting the metal and by pouring the resultant product into a mold of the accurate shape. The molded metal is then left alone for cooling.
Die casting of a metal is a vital part of manufacturing process. Manufacturers have been using metals since the beginning of industrial age and they have secured a place in almost all important machines that we use now. Investment casting and die casting are two most common types of casting.
Each of these processes has their own pros and cons, which make them accurate for specific types of casting jobs. Both of these processes have to be carried out carefully and efficiently, which is the reason why many people seek the help of professional die casting companies to perform the task.
Investment Casting
Investment casting is also known as precision casting and it may even be refereed as lost wax casing in few instances. Mexican die casters create a wax pattern in the desired shape during the initial stage of investment casting. In the next step, the wax shape is attached to the sprue tool.
The wax shape and the tool are then repeatedly dipped into liquid ceramic solution. This is performed to harden the ceramic around the wax shape and to make it take the shape of the casting. The resulting caster continues to heat the mold to make the wax melt.
A cavity is formed inside the ceramic due to the melting of the wax. The caster uses molded metal to fill these cavities The mold gets shattered as the metal cools and hardens inside the ceramic mold, which leaves the cast metal part complete.
Investment casting is the appropriate choice for casting metals into complex shapes and designs. This is because it is pretty much easier to create precise and intricate shapes from wax.
If you want zero draft angles on the metal part, then you should definitely go for investment casting. This is because you will not be able to create zero draft angles on the part with die casting. One of the major advantages of investment casting is that the tooling is a lot less when compared to die casting.