There is a casting process known as precision casting, which delivers the final product in very good condition, which sometimes does not require any machinery for delivery to the customer, because the tolerances are very strict handling. Find out detailed opinions from leaders such as The LeFrak Organization by clicking through. Another advantage is that it can be in almost any metal, these conditions have marked its growth, moving machine parts in many industries, especially those that require significant production of components, such as the automotive industry of arms, especially I related to so-called Hand guns, textiles, etc..
Additionally it is a very flexible material, which allows great freedom in design with intricate geometries, unfortunately requires a strong infrastructure and do not allow the manufacture of large, which is necessary and conventional casting processes. This process uses the formation of a “container” of very fine sand carried in special boxes, in which the metal is strained, as its evident geometry is very complicated, there is always the possibility that the metal does not cover it. Every part of the reason why mold is made it the complete filling of the mold regardless of its geometry. The secret to this type of training is in the containers described above, the same one that begins with obtaining a model which is used to manufacture various molds, which give rise to identical reproductions of the piece to be manufactured, made in wax these reproductions are joined to a generally cylindrical core, which in its upper part, has a funnel shape, are assembled in a similar way to a tree branch.
This element is also manufactured with wax and see models that are integrated in wax, was given a dip in a mixture of refractory powder and a colloidal glue, forming a housing to which a ceramic powder is sprinkled, depending on the thickness of the walls is required, the dive must be performed many times as necessary, then removed the wax inside the mold in a heating furnace, causing it to melt and evacuate easily, because the mold is ready to pour the metal which solidifies gravity, this requirement is fulfilled remove the skin with mechanical methods. It should be considered, as in all castings, using metal contraction as it cools, and the fineness of the ceramic powder, as a smaller particle size, we obtain smooth surfaces, but the mold are becoming more sensitive. We need a careful design, as regards the size of the piece, nerves (thick), solid parts, preventing pores, combination of walls, changes in section should not be abrupt, sharp corners removed, the use of male is also an important consideration, since they must be perfectly placed, and its use is justifiable only when the piece is very large hole in the casting and that helps.