The Process of Making Die Cast Parts

The Process of Making Die Cast Parts. The process of making of die cast parts entails value for product quality, above else. With this in mind, die casters tend to give premium on following specifications right to the tilt. The basic agenda on the list is die construction, which is primarily made of die casting tooling. Die casting is made of alloy tool steels in at least two sections, namely the fixed die half and the ejector die half. In modern times, dies may carry cores, movable slides, or other sections for the production of threads, holes, and other features for the attainment of the desired shapes. The fixed die half has sprue holes that makes it possible for the molten metal to enter the die and fill in the cavity. On the other hand, the ejector die half has runners and gates that lead the molten metal right into the cavity. Aside from these two sections involved in the die casting process, dies also consist of locking pins (for purposes of securing the fixed die half and the ejector die half), ejector pins (for purposes of making the removal of the cast part easier), and openings (for purposes of cooling and lubricating the molten metal or cast). When the chamber closes, the fixed die half and the ejector die half become one and remain locked together, thanks to the chamber’s hydraulic pressure. After a certain amount of time elapses (depending on the total projected surface area and the pressure required for the injection of the metal into the cavity), the die casting process is completed and high quality die cast parts are produced.

Died, Casted, Beautiful!

“Died, Casted, Beautiful” From forcing molten metal under high pressure into mold cavities, products from and for die casting are formed. Die casting, as we know it, is one fine way to produce small to medium sized parts that has good and intricate details, delicately formed surfaces, and that has consistency in dimensions making it as a very welcome addition in the production industry. Now, some of you may wonder what materials are used in this very clever process. With die casting, raw materials and elements (or non-ferrous metals as they are properly called) like zinc, copper, aluminum, magnesium, lead, and tin based alloys are used. These non-ferrous metals, as their collective name suggests, contains no trace of iron. And although these are the materials that are commonly used, ferrous materials (or materials that has traces of iron) can also be used in this process. And the process itself, you may ask? Well, die casting begins with closing the mold after being sprayed with a lubricant. By spraying lubricant on the mold, the temperature of the die can easily be controlled and the removing the cast later on will be much easier. After this first step, molten metal that is under high pressure of around 10—175 MPa (1,500—25,000 psi) is shot into the die. This amount of pressure is kept once the die is filled and until it is totally solidified. Filling the die by using a high-pressure injection is done so that the whole cavity would be filled before parts of the entire casting hardens. Moreover, using a high-pressure injection helps makers avoid irregularities in form even if there are parts of the cast that are not easy to fill due to its irregular shape. And with a process as long as this one, one can be sure that the results will be beautiful die casted parts.

Sand mixer for melting metal

Slide show of Muller sand mixer from a metal casting forum. Homemade mixer for sand to use for melting metal to sand casting parts at home.






Muller